A scientific note on the drone flight time of Apis mellifera capensis and A. m. scutellata.

Jordan LA, Allsopp MH, Oldroyd BP, Wossler TH, Beekman M. 2007. A scientific note on the drone flight time of Apis mellifera capensis and A. m. scutellata. Apidologie  38 (5): 436-437