Kovalchuk, I. I., Kykish, I. B., Fedoruk, R. S. and Tsap, M. M. (2021) “MICROELEMENTS OF BEE TISSUES FOR FEEDING WITH NANOTECHNOLOGICAL COBALT AND GERMANIUM CITRATES”, Bulletin of Sumy National Agrarian University. The series: Veterinary Medicine, (3 (54), pp. 31-38. doi: 10.32845/bsnau.vet.2021.3.5.