Gouw, M. S. and Gimenes, M. (2013) “Differences of the Daily Flight Activity Rhythm in two Neotropical Stingless Bees (Hymenoptera, Apidae)”, Sociobiology. Feira de Santana, Brazil, 60(2), pp. 183–189. doi: 10.13102/sociobiology.v60i2.183-189.