Andrianov, N.G. and Tolstov, A.A. (2013) “Experimental investigation of the accuracy of optical measurements with the telescope in Kislovodsk”, Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, (4), pp. 13–19. Available at: https://vestnik.kubsu.ru/article/view/543 (Accessed: 5 December 2025).