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
