Epizootic Situation on Honey Bees (Apis Mellifera) Varoosis in Selected Areas Within Chernivtsi Region (Ukraine). (2021). Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, 24, 133-140. https://doi.org/10.26565/1992-4259-2021-24-12