1. Bobrov, E.G. and Tzvelev, N.N. (Eds.), Flora of the USSR: Alphabetical Index to Volumes I-XXX (Nauka, Moscow, 1964) [in Russian].
2. Emeljanov, A.F., “Suggestions on Classification and Nomenclature of Ranges,” Entomologicheskoe Obozrenie 53 (3), 479–522 (1974). https://www.zin.ru/Animalia/Coleoptera/pdf/emelj a n o v l 974.pdf.
3. Gorodkov, K.B., “Range Types of Insects of the Tundra and Forest Zones of the European Part of the USSR (Maps 179-221),” in Ranges of Insects of the European Part of the USSR: an Atlas, Ed. by K.B. Gorodkov (Nauka, Leningrad, (1984), pp. 3–20 [in Russian].
4. Gorodkov, K.B., “Range Types of Diptera in Siberia,” in Systematics, Zoogeography, and Karyology of Diptera (Insecta), Ed. by E.P. Nartshuk (Zoological Institute, St. Petersburg, 1992), pp. 45–56 [in Russian].
5. Grodzinsky, M.D., “Mesoscale Landscape Sectorality (by the Example of the Area of Ukraine),” Izvestiya Russkogo Geograficheskogo Obshchestva 143 (5), 27–38 (2011).