Kulikova, Nelli V., Valentina M. Chepurova, and Elena N. Petrovskaya. “On Studying the Possible Approach of Short-Period Comets to the Earth”. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, no. 4 (December 30, 2013): 91–100. Accessed December 5, 2025. https://vestnik.kubsu.ru/article/view/558.