[1]
R. A. Calderón and J. W. van Veen, “Varroa destructor (Mesostigmata: Varroidae) in Costa Rica: population dynamics and its influence on the colony condition of Africanized honey bees (Hymenoptera: Apidae)”, Rev. Biol. Trop., vol. 56, no. 4, pp. 1741–1747, Dec. 2008.