V. O. Torres, D. Sguarizi-Antonio, S. M. Lima, L. H. da C. Andrade, and W. F. Antonialli-Junior, “Reproductive Status of the social wasp Polistes versicolor (Hymenoptera, Vespidae)”, Sociobiology, vol. 61, no. 2, pp. 218–224, Jul. 2014.