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1. К.Костадинов, Р.Джингова, Деструктивен метод за неутронно активационен анализ на живак във въглища, Год. СУ 70(1976)47.

2. К.Костадинов, Р.Джингова, Съдържание на живак в някои коксуващи се въглища, Изв. КНТПВО , 14 (1977)8.

3. R.Djingova, K.Kostadinov, D.Todorovsky, On the inorganic forms of mercury in pile irradiated dimethylmercury and diphenylmercury, Ann. d'Univ. Sofia, 71(1978) 11.

4. K. Kostadinov, R.Djingova, Trace element investigation of coal samples by thermal and erpithermal NAA, Radiochem.Radioanal. Lett., 45(1980)297.

5. I.Kuleff, R.Djingova, K.Kostadinov, D.Todorovsky, INAA of trace elements in quartz, J.Radioanal.Chem., 62(1981)187.

6. K.Kostadinov, R.Djingova, Trace element analysis of biological materials by thermal and epithermal NAA, J.Radioanal.Chem., 63(1981)15.

7. K.Kostadinov, R.Djingova, Determination of dimethylmercury and diphenylmercury in biological liquid samples, Radiochem. Radioanal. Lett., 48(1981)401.

8. D.Todorovsky, K.Kostadinov, R.Djingova, Optimization of the calculations for the preparation of standard solutions, Analyt. Chimica Acta, 123(1981)303.

9. V.Diakovich, D.Todorovsky, R.Djingova, I.Kuleff, Y.Yanev, An algorithm for data processing in NAA, J.Radioanal.Chem., 63(1981)13.

10. R.Djingova, K.Kostadinov, A method for determination of diphenylmercury in biological liqiud samples, Radiochem.Radioanal.Lett., 51(1982)399.

11. Р.Джингова, Неутронноактивационен анализ на живак и други микроелементи във въглища и биомедицински проби, Автореферат докторска дисертация, СУ, София (1982)

12. И.Кулев, Р.Джингова, Приложение на ИНАА в изучаването на археологически находки и произведения на изкуството, Изв. Нац.Ист. Музей IV (1983) 290.

13. I.Kuleff, R.Djingova, I.Penev, Analysis of ancient and medieval glasses by INAA, J.Radioanal.Nucl.Chem., 83(1984)333.

14. A.Alian, R.Djingova, B.Kroener, B.Sansoni, The monostandard method in thermal NAA of geological, biological and environmental samples, Fresenius Z. Anal.Chem., 319(1984)47.

15. I.Kuleff, R.Djingova, The dandelion (Taraxacum officinale) - A monitor for environmental pollution?, Water, Air and Soil Pollut., 21(1984)177.

16. A.Astrug, V.Kuleva, I.Kuleff, Z.Kiriakov, A.Tomov, R.Djingova, Trace elements in blood and plasma of patients with chronic renal failure treated with maintenance hemodialysis, Trace elements in medicine, 1(1984)65.

17. I.Kuleff, R.Djingova, G.Djingov, Provenance study of medieval Bulgarian glass by INAA and cluster analysis, Archaeometry 27(1985)185.

18. I.Kuleff, R.Djingova, I.Penev, On the chemical composition of medieval Bulgarian glasses from Preslav, Glastechn. Ber., 548(1985)232.

19. I.Penev, I.Kuleff, R.Djingova, Simultaneous activation determination of Al, Si and Mg in rocks, glasses and pottery, J.Radioanal.Nucl.Chem., 96(1985)219.

20. A.Alian, R.Djingova, B.Sansoni, Comparison of different NAA methods for multielement analysis of geological materials, in B.Sansoni (ed) Instrumentelle Multielementanalyse, VCH publisher, Weinheim, 1985, p.123.

21. S.Alexandrov, I.Kuleff, R.Djingova, S.Arpadjan, E.Taskaev, Impurity determination in Bi2O3 and PbCl2 by NAA and AAS, Proc. I Balkan Conf. Activation Analysis, Varna, 1985.

22. И.Кулев, Р. Джингова, И. Пенев, К. Чемширова, Многоелементин неутронноактивеционен анализ на антични и средновековни стъкла, Изв. Нац. Ист. Музей, VI(1986)121.

23. I.Kuleff, R.Djingova, I.Penev, INAA of pottery for provenance study, J.Radioanal.Nucl.Chem, 99(1986)345.

24. I.Kuleff, R.Djingova, G.Djingov, Provenance study of pottery by INAA, Proc. 7th Int.Symp. Modern Trends in Activation Analysis, Copenhagen, 1986, p.787.

25. R.Djingova, I.Kuleff, I.Penev, B.Sansoni, Br, Cu, Mn and Pb content of the leaves of Taraxacum officinale, Sci.Total Environ. 50(1986)197.

26. S.Arpadjan, A.Koinarska, R.Djingova, Verfahren zur Trennung und Anreicherung bei der Atomabsorptionsbestimmung von Spurenverunreinigung in schwerloeslichen Bleiverbindungen, Fresenius Z. Anal.Chem., 325(1986)278.

27. R.Djingova, I.Kuleff, S.Arpadjan, S.Alexandrov, A.Voulgaropoulus, T.Sawidis, NAA and AAS of Ulva lactuca and Gracilaria verrucosa from Thermaicos Gulf, Greece, Toxicl.Environ.Chem., 15(1987)149.

28. I.Kuleff, R.Djingova, G.Djingov, Provenance study of sgraffito ceramics (XIII-XIVc) from Schumen, Varna and Tcherven, in T.Maniatis (ed.) Archaeometry, Elsevier, Amsterdam, 1989, p.533.

29. I.Kuleff, R.Djingova, A.Alexandrova, M.Iowtchev, INAA of medival glasses from the first Bulgarian capital Pliska, Isotopenpraxis, 24(1989)190.

30. I.Kuleff, R.Djingova, Activation analysis in archaeology, in. Z.Alfassi (ed) Activation Analysis, vol. 2, CRC Press, Boca Raton, 1990, p.427.

32. R.Djingova, I.Kuleff, I.Penev, INAA of reference materials for archaeometric investigations of pottery, J.Radioanal.Nucl.Chem. (lett), 144(1990)397.

33. I.Kuleff, R.Djingova, A.Alexandrova, Chr.Angelova, INAA and AAS of ancient lead anchors found along the Bulgarian Black Sea coast, Proc. 27th Symp. Archaeometry, Heidelberg, 1990.

34. И.Кулев, Р.Джингова, А.Александрова, И.Караджова, Комбиниран метод за определяне на химическия състав на находки от олово, Год. СУ, 84(1990)145.

35. И. Кулев, Р.Джингова, И.Пенев, Химически профил на находки от сграфито керамика ІІІ, Изв. Музеите Сев. България,17(1991) 289.

36. R.Djingova, I.Kuleff, Provenance study of pottery and glass by INAA, in M.Hughes, M.Cowell and D.Hook (eds) INAA and ICP-AES in Archaeology, Occasional papers No 82, British Museum, 1991.

37. R.Djingova, S.Arpadjan, I.Kuleff, INAA and FAAS of various vegetable reference materials, Fresenius J.Anal.Chem. 339(1991)181.

38. I.Kuleff, R.Djingova, Pottery provenance studies and choice of elements to be determined, Proc. Jahrestagung der Arbeitskreises Archeometrie, Berlin,1991.

39. R.Djingova, I.Kuleff, Archaeometric study of medieval glass from the first Bulgarian capital Pliska, Archaeometry, 34(1992)53.

40.Р.Джингова, И.Кулев, И.Пенев, Химически профил на находки от сграфито керамика ІІ. Изследване на археологически находки от Калиакра, Каварна и Балчик, Год. Варнински музей, 28 (1992) 333.

41. И. Кулев, Р.Джингова, Г.Джингов, И.Пенев, Химически профил на находки от сграфито керамика ІV, Изв. Музеите Сев. България,19(1993)131.

42. R.Djingova, I.Kuleff, Monitoring of heavy metal pollution by Taraxacum officinale, in B.Markert (ed) Plants as Biomonitors, VCH publisher, Weinheim, 1993, p. 435.

43. R.Djingova, I.Kuleff, N.Andreev, Comparison of the ability of several vascular plants to reflect environmental pollution, Chemosphere, 27(1993)1385.

44. R.Djingova, I.Kuleff, On the sampling of vascular plants for monitoring of heavy metal pollution, in B.Markert (ed) Environmental Sampling for Trace Analysis, VCH publisher, Weinheim, 1994, p. 395.

45. И.Кулев, Р.Джингова, Г.Джингов, И.Пенев, Химически профил на находки от сграфито керамика І, Год. СУ , 81(1994)63.

46. I.Kuleff, R.Djingova, A.Alexandrova, V.Vakova, A.Amov, INAA, AAS and lead isoptope analysis of ancient lead anchors from the Black Sea, J.Radioanal.Nucl.Chem., 196(1995)143.

47. R.Djingova, G.Wagner, D.Peshev, Heavy metal distribution in Bulgaria using Populus nigra 'Italica' as a biomonitor, Sci. Total Environ., 172(1995)151.

48. И. Кулев, Р.Джингова, Г.Джингов, И.Пенев, За химичния състав на стъклата от старите български столици Плиска и Преслав, Год. Музеите в Сев. България, XX(1994)469.

49. И.Кулев, Р.Джингова, Археометрични изследвания с НАА в България, Andlytical Laboratory, 5(1996) 75.

50. R.Djingova, G.Wagner, I.Kuleff, D.Peshev, Investigation of the time-dependant variations in metal concentration in the leaves of Populus nigra 'Italica', Sci.Total Environ., 184(1996)197.

51. I.Kuleff, R.Djingova, Provenance study of pottery. Choice of elements to be determined. Revue d'Archeometrie, 20(1996)57.

52. R.Djingova, I.Kuleff, A.Voulgaropoulus, Heavy metal pollution in Sofia (Bulgaria) and Thessaloniki (Greece) using Taraxacum officinale as biomonitor, J.Environ.Chem. 4(1995)270.

53. I.Kuleff, R.Djingova, P.Balabanov, Archaeometric investigetion of stamped amphorae from the Thracian town Deltium (VI-IIIc.B.C.), Berliner Beitr. z. Archaeometrie, 15(1998) 199.

54. I.Kuleff, R.Djingova, Chemical profile of the sgraffito pottery production in Sozopol and Nessebar, Berliner Beitr.z.Archaeometrie, 15(1998) 217.

55. I.Kuleff, R.Djingova, Archaeometric investigation of Roman glass from Bulgaria, Berliner Beitr,z.Archaeometrie, 16(1999) 183-198.

56. I.Kuleff, R.Djingova, Mean concentration of elements determined in Ohio Red Clay, J.Radioanal.Nucl.Chem, 237(1998)3.

57. Ju.Ivanova, R.Djingova, I.Kuleff, Determination of heavy and toxic elements in plants and soils with EDXRF using Am-241 excitation source, J.Radioanal.Nucl.Chem., 238 (1998) 29.

58. R.Djingova, Ju.Ivanova, I.Kuleff, Comparative evaluation of the possibilities of INAA, EDXRF, ICP-AES and AAS in the analysis of plants, J.Radioanal.Nucl.Chem., 237(1998)25.

59. R.Djingova, I.Kuleff, Seasonal variations in the metal concentration of Taraxacum officinale, Plantagomajor and Plantago lanceolata, Chemistry and Ecology, 16(1999)239.

60. R.Djingova, G.Wagner, I.Kuleff, Screening of heavy metal pollution in Bulgaria using Populus nigra 'Italica', Sci. Total Environ., 234(1999) 175-184.

62. Yu. Ivanova, R.Djingova, I.Kuleff, Possibilities of ED-XRF with radionuclide sources for analysis of plants, J.Radioanal.Nucl.Chem. 2(1999) 569-575.

63. I.Kuleff, R.Djingova, Ju. Ivanova, Determination of Ba, Fe, Sr and Zr in silicate materials with Ed-XRF using Am-241 excitation source, J. Radioanal. Nucl. Chem, 3(1999) 787-791.

64. I. Kuleff, R.Djingova, G. Kabakchieva, On the origin of the roman pottery from Moesia Inferior (North Bulgaria), Archaeologia Bulgarica, 3 (1999) 29 - 38.

65. П. Бончев, И.Кулев, Р.Джингова, “75 години Катедра по Аналитична химия – Библиография”,Унив.Изд. “Св.Кл.Охридски”, София, 1999 г.

66. I.Kuleff, R.Djingova, B.Zlateva, “Archaeometric investigation of bones from Thrace” Archaeologica Bulgarica

67.I.Kuleff, R.Djingova, M.Arnaudov, D.Gergova "Provinance study of iron age amber from Bulgaria", Proc. Int. Symp. "Archaeometry", Budapest, 27 April - May 1, 1998

Archaeometry 98, E.Jerem and K.Biró (Eds.), Britain Archaeological Reports and Archaeolinqua Central European Series, Oxford, 2001

68. R. Djingova, P.Kovacheva, I.Kuleff, On the use of Taraxacum officinale Web. and Populus nigra ‘Italica’ for the evaluation of heavy metal pollution risk in urban ecosystems, Phytologia Balcanica, 5(2/3) (1999) 123-129.

69. I.Kuleff, R.Djingova, G.Kabakchieva, “On the origin of the Roman pottery from Moesia inferior (North Bulgaria)” Archaeologia Bulgarica, 3(1999)29-38

70. R. Djingova, I.Kuleff, Instrumental Techniques for Trace Analysis, in B.Markert, K.Friese ,(Eds) Trace Elements.Their Distribution and Effects in the Environment, Elsevier Sci. B.V., Amsterdam , 2000,137-185.

71.P. Kovacheva, R.Djingova, I.Kuleff, On the representative sampling of plants for multielement analysis, Phytologia Balcanica, 6(1) (2000) 91-102.

72. Yu.Ivanova, S. Korhammer, R.Djingova, H.Heidenreich, B. Markert , Determionation of lanthanoids and some heavy and toxic elements in plant certified reference materials by inductively coupled plasma mass spectrometry, Spectrochimica Acta, B, 56 (2001)3-12.

73.Yu. Ivanova, R. Djingova, S. Korhammer, B. Markert, On the microwave digestion of soils and sediments for determination of lanthanides and some toxic and essential elements by inductively coupled plasma sourse mass spectrometry, Talanta, 54 (2001) 567 –574.

74. R. Djingova, Yu. Ivanova, G.Wagner, S. Korhammer, B. Markert, Distribution of lanthanoids, Be, Bi, Ga, Te, Tl, Th and U on the territory of Bulgaria using Populus nigra ‘Italica’ as an indicator, The Sci. Total Environ,280 (2001) 85 – 91.

75. I.Kuleff, R.Djingova, Archaeometric investigation of sgraffito ceramics from medieval Bulgaria“ Archaeologia Bulgarica, V, (3), (2001) 71-82

76. R.Djingova, I.Kuleff, Concentration of cesium-137, cobalt-60 and potassium –40 in some wild and edible plants around the nuclear power plant in Bulgaria, J. Environ. Radioactivity,59 ( 2002) 61 - 73

77. P.Kovacheva, R.Djingova, Use of agricultural plants for environmental monitoring of heavy and toxic elements, Fifth Int. Symp. Environmental Contamination in Central and Eastern Europe,Prague, 12-14.09.2000

78. I.Kuleff, R.Djingova, "On the glass production during Roman and medieval times on the territory of Bulgaria" Archaeologia Bulgarica, VI, (2002)

79. R. Djingova, Yu. Ivanova, Determination of rare earth elements in soils and sediments by ICP-AES with two calibration methods and an anion exchange procedure, Talanta 57(2002) 821-829

80. R. Djingova, H.Heidenreich, P. Kovacheva, B.Markert, On the determination of platinum group elements in environmental materials by inductively coupled plasma mass spectrometry and microwave digestion, Analytica Chimica Acta,480 (2003)245-251

81. P.Kovacheva, R.Djingova, Development of an ion – exchange method for separation and concentration of Platinum and Palladium for analysis of environmental samples by ICP-AES, Analytica Chimica Acta 464 (2002) 7-13

82. R. Djingova, P. Kovacheva, G. Wagner, B. Markert, Distribution of Platinum Group Elements and other Traffic Related Elements among Different Plants along some Highways in Germany. Science of the Total Environment, 308(2003) 235-246

83. P. R. Djingova, P.Kovacheva, I. Kuleff. On the introduction of bioconversion factors in the risk characterization for the environment, Ann. Univ. Sofia, Fac. Chim., 96 (2003) 261-267.

84.P.Kovacheva, R.Djingova, I. Kuleff. Quick Risk Assessment of Metal Pollution in Agroecosystems using Bioconversion Factors, In: Proceedings of the Sixth Int. Symp. “Environmental Contamination in Central and Eastern Europe and the Commonwealth of Independent States“, 1-4.09.2003, Prague, Czech Republic, CD-ROM.

85. Р. Джингова, Pазвитие и приложение на INAA, ICP-MS и EDXRF за анализ на растения и почви за целите на биомониторинга.р Автореферат на дисертация да ДХН, СУ”Св.Кл.Охридски”, 2003 г.

86. R. Djingova, D. Todorovsky, L. Tsankov, K. Staevski, P. Kovacheva, I. Kuleff, R. Tsenov. Historical review, present status and perspectives of nuclear science education at the Sofia University. In: Proceeding of the Int. Workshop “Education and Knowledge Preservation in Nuclear Sciences in the Balkan Countries” P. Kovacheva & D. Todorovsky (Eds.), Theta Consult Ltd., Sofia, I.1, (2004) CD-ROM.

87. R.Djingova, I.Kuleff, B. Markert, Chemical Fingerprinting of plants, Ecological Research, 19 (2004) 3-11.

88. B.Zlateva, M.Kuzmanov, I.Kuleff, R.Djingova, D.Gergova"Multi-element analysis of bones for dietary reconstuction of the inhabitants of Thracia at Hellenistic times (Bulgaria)" Berliner Beitraege zur Archaeometrie, 20 (2003)

89.B. Zlateva, R.Djingova, I. Kuleff, On the possibilities of ICP-AES for analysis of archaeological bones, Central European J. Chem., 3 (2003) 201-222.

90. B.Zlateva, R.Djingova, I.Kuleff “On the possibilities of ICP-AES and ICP-MS for analysis of archaeological bones” Proc. 3rd Int.Conf. Instrumental Methods of Analysis Modern Trends and Applications,Thessaloniki, 23-27 September 2003, pp. 303-306.

91. R.Djingova, B. Zlateva, I.Kuleff "On the possiblilities of ICP-MS for analysis of archaeological bones for reconstruction of paleodiet" Talanta, 63 (2004) 785-789.

92. R.Djingova, P.Kovacheva, B.Tododrov, B. Zlateva, I. Kuleff, On the influence of soil properties on the transfer of Cs-137 from two soils (Chromic Luvisol and Eutric Fluvisol) to wheat and cabbage, J. Environ. Radioactivity, 82 (2005) 63-79.

93. R. Djingova, P. Kovacheva Analytical problems and validation of methods for determination of Palladium in environmental materials, In: "Palladium Emissions in the Environment: Analytical Methods, Environmental Assessment and Health Effects", F. Zereini and F. Alt (Eds.), Springer Verlag, 2005, 145-162.

94. L.Popov, I.Kuleff, R.Djingova, Determination of Radiocaesium in environmn\ental water samples using copper ferro(II)cyanide and sodium tetraphenylborate, J. Radioanal.Nucl. Chem, 269 (2006)203-207

95. L.Popov, X.Hou, S. Nielsewn, Y.Yu, R.Djingova,I.Kuleff, Determination of radiostrontium in environmental samples using sodium hydroxide for separation of strontium from calcium, J. Radioanal. Nucl. Chem, 269 (2006) 161-173

96.V. Ljubomirova, R.Djingova, B.Zlateva, Occurrence and types of organometal(loid) compounds in the environment, Ann.Uni. Sofia,98-99 (2005-2006) 261-280

97. V. Ljubomirova, R.Djingova, B.Zlateva, The concept of speciation analysis and hyphenated techniques, , Ann.Uni. Sofia,98-99 (2005-2006) 281-303

98. I.Kuleff, R.Djingova, Archaeometric investigations at the university of Sofia (Bulgaria), Archaeometry,49 ( 2007) 245-253.

99. B. Markert, S. Wuenschmann, St. Fraenzle, O. Wappelhorst, V. Wiekert, G. Breulmann, R. Djingova, U. Herpin, H. Lieth, W. Schroeder, On the road from environmental biomonitoring to human health., Int. J. Environm.&Pollution, 32 (2008) 486-498.

100. B. Todorov, R. Djingova, A. Nikiforova, Separation and determination of americium in low-level alkaline waste of NPP origin, Chechoslovak J. Physics, 56 (2006) D653-D664.

101. T.Toncheva-Panova, M. Merakchiyska, R. Djingova, J. Ivanova, M. Sholeva, Effect of Cu+ on ther red microalga Rhodella Reticulata, Gen.Appl.Plant Physiology, Special Issue, 2006, 53-60.

102. B. Todorov, G. Pekov, R. Djingova, On the fractionation of 137Cs and 60Co in soils by sequential extractions, J. Radioanal. Nucl. Chem., 278 (2008) 9-15

103.V. Ljubomirova, R. Djingova, Speciation of inorganic platinum-chloride complexes in environmental samples by SPE and ICP-AES, Analytica Chimica Acta, 614 (2008) 119-126

104. Valentina Ljubomirova, Rumyana Djingova, Johannes T. van Elteren, Marjan Veber, Tomasz Kowalkowski,Boguslaw Buszewski, Investigation of the solubilization of car-emitted Pt, Pd and Rh in street dust and spiked soil samples, J. Environ. Anal. Chem., 88 (2008) 499 – 512.

105. Markert, B.,Wuenschmann, S.,Fraenzle, S., Wappelhorst, O.,Weckert, V.,Breulmann, G., Djingova, R.,Herpin, U., Lieth, H., Schröder, W., Siewers, U., Steinnes, E., Wolterbeek, B., Zechmeister, H, On the road from environmental biomonitoring to human health aspects: Monitoring atmospheric heavy metal deposition by epiphytic/epigeic plants: Present status and future need, International Journal of Environment and Pollution 32( 2008) 486-498

106. Fraenzle, S., Hoffmann, V., Panaiotu, C., Jordanova, D., Jordanova, N., Djingova, R., Wuenschmann, S., Markert, B. Formation and determination of magnetite particles in biological samples for biomonitoring inputs of Fe and other heavy metals, Agrochimica, 53 (2009) 405-417

107. B.Todorov, A. Vasilev, T. Deligeorgiev, R. Djingova, A method for extraction of bioavalable americium based on new complex of americium-241 with a fluorinated tris-β-diketone, Asian Chem. Letters, Vol. 14, 3 (2010) 25-32

108. V. Ljubomirova, V. Mihaylova, R. Djingova, Determination of inorganic platinum-chloro complexes and their hydrolysis products in spiked soil samples, Asian Chemistry Letters, 14 (2010) 31-40.

109. R.Djingova, B.Zlateva, I.Kuleff, “On the sample preparation of archaeological bones for elemental analysis” Asian Chemistry Letters, 14, 177-186 (2010)

110. Lyubomirova V., Djingova R., Van Elteren J.T. Fractionation of traffic-emitted Ce, La and Zr in road dusts Journal of Environmental Monitoring, 13 (6), (2011) 1823-1830.

111. Lyubomirova V., Djingova R. Identification of Pt and Pd bound to humic acid species in spiked soils and street dusts by size exclusion chromatography and ICP-MS, Chemical Speciation and Bioavailability, 23 (1), (2011) 38-45.

112. Kuleff I., Djingova R., Mass spectrometry, in Vandenabeele P. and Edwards H.(Eds.) Analytical Archaeometry, RSC, 2012 163 – 209

113. Djingova R., Mihaylova V., Lyubomirova V., Tsalev D., Multielement Analytical Spectroscopy in Plant Ionomics Research, Applied Spectroscopy Reviews, 48 (2013) 384 -424

114. Mihaylova V., Lyubomirova V., Djingova R., "Optimization of sample preparation and ICP-MS analysis for determination of 60 elements for characterization of the plant ionome", J. Environmental Analytical Chemistry, 93 (2013) 1441-1456

115. Kovacheva, P., Yovkova, D., Todorov, B., Djingova, R.Effects of freezing and soil drought on the geochemical fractionation of americium in Fluvisol and Cambisol soils from Bulgaria(2013) Central European Geology, 56 (1), pp. 1-12.

116. Todorov, B., Vasilev, A., Tosheva, Z., Deligeorgiev, T., Djingova, R. On the determination of Am3+ in natural water based on extraction of 241Am complexes with fluorinated tris-β-diketone(2013) Comptes Rendus de L'Academie Bulgare des Sciences, 66 (5), pp. 685-690.

117. Lyubomirova, V., Djingova, R.Mass spectrometric techniques for characterisation of platinum-humic substance complexes in soil and street dust samples(2013) Chemical Speciation and Bioavailability, 25 (4), pp. 223-234.

118. Kovacheva, P., Todorov, B., Djingova, R.Geochemical fractionation and bioavailability of 241Am, 60Co and 137Cs in fluvisol soil after sharp temperature variation before the growing season(2014) Central European Geology, 57 (2), pp. 153-163.

119. Lyubomirova, V., Djingova, R.Transfer of platinum group elements from soil to ryegrass (Lolium multiflorum)(2014) Comptes Rendus de L'Academie Bulgare des Sciences, 67 (5), pp. 641-646.

120. Kovacheva, P., Djingova, R.Influence of freezing on physicochemical forms of natural and technogenic radionuclides in Chernozem soil(2014) Chemical Papers, 68 (5), pp. 714-718

121. Kovacheva, P., Mitsiev, S., Djingova, R.Physicochemical fractionation of americium, thorium, and uranium in Chernozem soil after sharp temperature change and soil drought(2014) Chemical Papers, 68 (3), pp. 336-341

122. Kovacheva, P., Slaveikova, M., Todorov, B., Djingova, R.Influence of temperature decrease and soil drought on the geochemical fractionation of 60Co and 137Cs in fluvisol and cambisol soils(2014) Applied Geochemistry, 50, pp. 74-81.

123. V. Lyubomirova, V. Mihaylova, R. Djingova, Changes in the ionome of Taraxacum officinale under different anthropogenic influences, Phytologia Balcanica, 20 (2014) 247 – 255.

124. V. Lyubomirova. R. Djingova. Accumulation and distribution of Pt and Pd in roadside dust. Soil and vegetation in Bulgaria. in F. Zereini and C. Wiseman (Eds) Platinum metals in the Environment, Springer, 2015, 243 – 256

125. B. Todorov, R. Djingova. Fractionation and soil-plant transfer of 241 Am in different soil types., Pedosphere, 25 (2015) 212 – 219.

126. V. Lyubomirova, R. Djingova, I.Kuleff, Comparison of analytical techniques for analysis of archaeological bronze. Archaeometry. doi: 10.1111/arcm.12138

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