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Georgiev, D., Manh, V. Q., Simov, N., Bekchiev, R., Hieu, N. V., Hoang, L. T., 2024. New records of Psocoptera (Insecta) from Vietnam. — Historia naturalis bulgarica, 46: 211—214. [PDF] https://doi.org/10.48027/hnb.46.081
Toshkova, N., Dimitrova, K., Langourov, M., Zlatkov, B., Bekchiev, R., Ljubomirov, T., Zielke, E., Angelova, R., Parvanova, R., Simeonov, Tz., Simov, N., 2023. Snacking during hibernation? Winter bat diet and prey availabilities, a case study from Iskar Gorge, Bulgaria. — Historia naturalis bulgarica, 45: 125—142. [PDF] https://doi.org/10.48027/hnb.45.053
Kostova, R., Bekchiev, R., Popgeorgiev, G., Kornilev, Y. V., 2023. First exhaustive distribution and habitat modelling of Morimus asper (Sulzer, 1776) sensu lato (Coleoptera, Cerambycidae) in Bulgaria. — Nature Conservation, 53: 39—59. https://doi.org/10.3897/natureconservation.53.104243
Kostova, R., Bekchiev, R., 2023. Ground beetle (Coleoptera: Carabidae) taxocoenoses from high altitude Pinus peuce and Pinus heldreichii forests in Bulgaria. — Historia naturalis bulgarica, 45 (7): 187—196. [PDF] https://doi.org/10.48027/hnb.45.073
Kostova, R., Bekchiev, R., 2023. Data on the distribution of Osmoderma barnabita Motschulsky, 1845 (Coleoptera: Cetoniidae) in Bulgaria from 1904 to 2022. — Historia naturalis bulgarica, 45 (6): 155—161. [PDF] https://doi.org/10.48027/hnb.45.061
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