@inproceedings{inproceedingse4266670,
title   = {How far north and south does the apifauna of amazonia reach, especially the bee species visiting mass-flowering trees},
author = {Engels, W and Harter, B and Köhler, A and Wilms, Wolfgang and Imperatriz-Fonseca, Vera Lucia and Blochtein, Betina and Thiele, Richard and Zillikens, A},
year = {2000},
publisher = {EMBRAPA},
booktitle   = {International Congress of Entomology}
}