@book{bookf378722a,
title   = {The biology of stingless bees},
author = {Velthuis, Hayo Hans Willen and Biesmeijer, J C and Camargo, João Maria Franco de and Cobb, L and Laurino, Marilda Cortopassi and Landim, Carminda da Cruz and Engels, Wolf and Imperatriz-Fonseca, Vera Lucia and Koedam, Dick and Vale, M Pereira and Ramalho, M and Matos, E V da Silva and Zucchi, Ronaldo},
year = {1997},
publisher = {Universiteit Utrecht/IB-USP}
}