Vossler, F. G., G. A. Fagúndez, and D. C. Blettler. “Variability of Food Stores of Tetragonisca Fiebrigi (Schwarz) (Hymenoptera: Apidae: Meliponini) from the Argentine Chaco Based on Pollen Analysis”. Sociobiology, vol. 61, no. 4, Dec. 2014, pp. 449-60, doi:10.13102/sociobiology.v61i4.449-460.