1. Dimitrov Ts., R.Titorenkova, А. Zaichuk, Y. Tzvetanova, Synthesis and study of ferri-diopside ceramic pigments,Voprosy khimii i khimicheskoi tekhnologii, 2022, No. 1, pp. 39-46, ISSN 0321-4095, (Impact Factor: 0.571 /2021/)
https://doi.org/10.32434/0321-4095-2022-140-1-39-46
2. Ibreva Ts., Ts. Dimitrov, Synthesis and study of blue diopside ceramic pigments, 86 International scientific conference of young scientist and students „Youth scientific achievements to the 21st century nutrition problem solution“, NUFT, Kyiv, April 15-16, 2021, Part 2, 266-267
3. Nikola Kuvandjiev, Tsvetan Dimitrov, Rositsa Titorenkova, Synthesis and characterization of V – doped diopside ceramic pigments, Reports Awarded with „Best Paper“ Crystal Prize – 60th annual scientific conference of University of Ruse and Union of Scientists „New industries, digital economy, society – projections of the future – IV”, 2021, 256-260, ISBN 978-954-712-864-4 (Print)
https://conf.uni-ruse.bg/bg/?cmd=dPage&pid=bp-2021
4. Tsvetan Dimitrov, Rositsa Titorenkova, Study of diopside ceramic pigments with rare earth elements, Proceedings Univercity of Ruse “Angel Kanchev”, 2021, vol. 60, book 10.1, ISSN 2603-4123 (on-line), 40-43
https://conf.uni-ruse.bg/bg/?cmd=dPage&pid=proc21-10.1
5. Titorenkova R., V. Kostov-Kytin, Ts. Dimitrov, Synthesis, phase composition and characterization of Co-diopside ceramic pigments, Ceramics International, 48, 24, 2022, ISSN 0272-8842, 36781-36788, (Impact Factor: 4.527 /2021), Q1.
https://www.sciencedirect.com/science/article/pii/S027288422203053X
6. Dimitrov Ts., R. Titorenkova, O. Petrov, Ts. Ibreva, M. Stancheva, Synthesis and characterization of ceramic pigments in the system CaO.NiO.MgO.2SiO2, AIP Conference Proceedings, 2022, 2486, 030003; ISSN1551-7616, (Impact Factor: 0.402 /2021/)
https://doi.org/10.1063/5.0105620
7. Titorenkova, R., Tz. Dimitrov, Y. Tzvetanova, Synthesis and characterization of Cr-doped diopside ceramics, ReviewofBulgarian Geological Society, vol. 83, part 3, 2022, p. 47–50, ISSN 0007-3938,
https://doi.org/10.52215/rev.bgs.2022.83.3.47
8. Jankov, G., R. Titorenkova, Ts. Dimitrov, Study of ceramic pigments with praseodymium and erbium rare earth elements, Proceedings University of Ruse “Angel Kanchev”, 2022, vol. 61, book 10.3, ISSN 2603-4123 (on-line), 11-15.
https://conf.uni-ruse.bg/bg/docs/sns/2022/FR.pdf
9. Dimitrov, Ts., R. Titorenkova, O. Petrov, Diopside ceramıc pıgments obtained by a sol-gel method with the participation of different chromophore elements, Proceedings Univercity of Ruse “Angel Kanchev”, 2022, vol. 61, book 10.1., ISSN 2603-4123, 74-80
https://conf.uni-ruse.bg/bg/?cmd=dPage&pid=proc22
10. Titorenkova, R., Dimitrov, Ts., Antonov, D., Tzvetanova, Y., Tsvetanova, L., Piroeva, I. Augite-based ceramics obtained by solid-state sintering of loess, Journal of Chemical Technology and Metallurgy, 2024, 59, 6, 1443-1450
https://journal.uctm.edu/node/j2024JCTM_2024_59_6_21_23-278_pp1443-1450.pdf
11. Georgiev, G., Dimitrov, Ts., Titorenkova, R. Synthesis and study of diopside ceramic pigments with iron chromophore obtained by different methods, Proceedings Univercity of Ruse “Angel Kanchev”, 2023, vol. 62, book 10.3, ISSN 2603-4123 (on-line), 20-24
https://conf.uni-ruse.bg/bg/docs/sns/2023/FR.pdf
12. Titorenkova, R., Dimitrov, Ts., Tzvetanova, Y., Antonov, D. Ceramic pigments obtained by solid-state sintering of loess with addition of Cr2O3, Reports Awarded with „Best Paper“ Crystal Prize – 62th annual scientific conference of University of Ruse and Union of Scientists „New industries, digital economy, society – projections of the future – VI”, 2023, ISBN 978-954-712-864-4 (Print)
https://conf.uni-ruse.bg/bg/?cmd=dPage&pid=bestPapers
13. Titorenkova, R. Micro-infrared and raman spectroscopy applied for studying ancient pigments, Proceedings Univercity of Ruse “Angel Kanchev”, 2023, vol. 62, book 10.1, ISSN 2603-4123 (on-line), 110-114
https://conf.uni-ruse.bg/bg/docs/cp23/10.1/10.1-18.pdf
14. Georgieva I., Dimitrov, Ts., Titorenkova, R. Phase composition of ceramic pigments produced from waste spent, Proceedings Univercity of Ruse “Angel Kanchev”, 2024, vol. 63, book 10.3, ISSN 2603-4123 (on-line), 19-24
https://conf.uni-ruse.bg/bg/docs/sns/2024/FR.pdf
15. Dimitrov, Ts., Titorenkova, R., Petrov, O. Synthesis and phase composition of Mn – augite ceramic pigments, Proceedings Univercity of Ruse “Angel Kanchev”, 2024, vol. 63, book 10.1, ISSN 2603-4123 (on-line), 71-76
