@article{article9db352b8,
title   = {Estimation of the length of foraging period in two brazilian stingless bees kept in a greenbouse (hym., Apidae)},
author = {Bego, L R and Maeta, Y and Ishima, K and Tezuka, T},
year = {1989},
journal   = {Chugoku Kontyu}
}