@inproceedings{inproceedingsab03c318,
title   = {Non-apidae bee survey in sao paulo university campus (brazil): seasonality and floral preferences},
author = {Knoll, F R N and Bego, L R and Imperatriz-Fonseca, Vera Lucia},
year = {1992},
booktitle   = {International Workshop on Non-Apis Bees and Their Role As Crop Pollinators}
}