M. V. Mendez, A. C. Sanchez, F. F. Flores, and L. C. Lupo, “Pollen loads used by Apis mellifera L. (Himenoptera: Apidae) in an area of subtropical forest in Northwestern Argentina”, Rev. Biol. Trop., vol. 66, no. 3, pp. 1182–1196, Sep. 2018.