Atanasov, Atanas Z, Ivaylo S Hristakov, Kaloyan E Stoyanov, and Zhelyazkov Presiyan А. “Monitoring Honeybee (Apis Mellifera) Flight Activity and Within-Day Hive Weight Changes During Rapeseed (Brassica Napus) Flowering ”. Technium: Romanian Journal of Applied Sciences and Technology 14 (October 9, 2023): 90–93. Accessed April 17, 2026. https://techniumscience.com/index.php/technium/article/view/9685.