Razanova, O. P. and Skrypnyk, S. V. (2022) “THE INFLUENCE OF PROBIOTIC DRUGS ON THE DEVELOPMENT OF BEE FAMILIES IN THE SPRING PERIOD”, Bulletin of Sumy National Agrarian University. The series: Livestock, (2), pp. 54-60. doi: 10.32845/bsnau.lvst.2022.2.8.