@article{article2d77d1f4,
title   = {Age-dependent mass variation in the stingless bee Melipona quadrifasciata (Apidae, Meliponini)},
author = {Contrera, Felipe Andrés León and Imperatriz-Fonseca, Vera Lucia and Koedam, Dirk},
year = {2006},
journal   = {Brazilian Journal of Morphological Sciences}
}