Zakar, Erika, Edit Zajácz, Tímea Rácz, János Oláh, András Jávor, and Szilvia Kusza. 2013. “Morpometric Study of Hungarian Honey Bee (Apis Mellifera L.) Colonies”. Acta Agraria Debreceniensis, no. 51 (February): 59-63. https://doi.org/10.34101/actaagrar/51/2063.