Simov, N., Toshkova, N., Langourov, M., 2022. An unexpected guest in the winter: first record of Aradus bimaculatus Reuter, 1872 (Hemiptera: Aradidae) for the Balkan fauna. — Historia naturalis bulgarica, 44 (9): 91—95. [PDF] doi:10.48027/hnb.44.091
Langourov, M., Simov, N., Abadjiev, S., 2022. The invasion continues: Hierodula tenuidentata (Mantodea), Leptoglossus occidentalis (Hemiptera) and Pelopidas thrax (Lepidoptera) already on the island of Alonnisos. — Historia naturalis bulgarica, 44 (11): 137—144. [PDF] doi:10.48027/hnb.44.112
Grozeva, S., Stoianova, D., Konstantinov, F., Simov, N., Kuznetsova, V. G., 2022. A synopsis of the numbers of testicular follicles and ovarioles in true bugs (Heteroptera, Hemiptera)—sixty-five years of progress after J. Pendergrast’s review. — ZooKeys, 1136: 71—123. doi:10.3897/zookeys.1136.96431
Simov, N., Langourov, M., Sakalian, V., Bozukov, V., 2021. First fossil jewel beetle (Insecta: Coleoptera: Buprestidae) from Middle Miocene deposits in Bulgaria. — Historia naturalis bulgarica, 42: 31—34. [PDF] doi:10.48027/hnb.42.052
Simov, N., Langourov, M., Pavlova, A., Hubenov, Z., Bozukov, V., 2021. First record of fossil Diptera (Insecta) in Miocene deposits in Bulgaria. — Comptes rendus de l’Académie bulgare des Sciences 74 (2): 233—240. doi:10.7546/CRABS.2021.02.10 [PDF]
Langourov, M., Simov, N., Abadjiev, S., 2021. Three species of butterflies new for the North Aegean Island of Lemnos (Greece). — Historia naturalis bulgarica, 42: 79—86. [PDF] doi:10.48027/hnb.42.101
Koynova, T. V., Valkova, S. I., Simov, N. P., Langourov, M. S., Natchev, N. D., 2021. Data on the Stomach Content Analysis and Fat-body Morphology in the Agile Frog (Rana dalmatina Fitzinger in Bonaparte, 1838) during the Mating Season in Bulgaria. — Ecologia Balkanica, 13 (1): 27—33. [PDF]
Stoianova, D., Simov, N., Vu, M. Q., Nguyen, D. M., Grozeva, S., 2020. New data on karyotype, spermatogenesis and ovarian trophocyte ploidy in three aquatic bug species of the families Naucoridae, Notonectidae, and Belostomatidae (Nepomorpha, Heteroptera). — Comparative Cytogenetics, 14 (1): 139—156. doi:10.3897/CompCytogen.V14i1.48709
Nikolov, V., Dochev, D., Pavlishina, P., Brusatte, S., Yaneva, M., Konyovska, R., Vergilov, V., Simov, N., Spassov, N., Hristova, L., 2020. Welcome to “Cretaceous Park”: Three years of research at the Late Cretaceous tetrapod fossil site near the town of Tran, Western Srednogorie. — Review of the Bulgarian Geological Society, 81 (3): 141—143.
Käfer, H., Kovac, H., Simov, N., Battisti, A., Erregger, B., Schmidt, A. K. D., Stabentheiner, A., 2020. Temperature Tolerance and Thermal Environment of European Seed Bugs. — Insects, 11 (3) 197: 1—17. doi:10.3390/insects11030197