Chugreev, M.; Baimukanov, D.; Blokhin, G.; Malovichko, L.; Zubaliy, A.; Skvortsova, E.; Doshanov, D.; Tkacheva, I.; Kruglov, S. THE CURRENT STATE OF THE EUROPEAN DARK BEE SUBSPECIES Apis Mellifera Mellifera L. IN THE NORTH RANGE OF THE RUSSIAN FEDERATION. ВНР 2020, 54-62.