@article {7423,
	title = {Evidence for the origin of eusociality in the corbiculate bees (Hymenoptera: Apidae)},
	journal = {Journal of the Kansas Entomological Society},
	volume = {74},
	number = {1},
	year = {2001},
	note = {xerox},
	pages = {10-16},
	keywords = {fossils, molecules, morphology, paleontology, phylogenetics, phylogeny},
	author = {Schultz, Ted R. and Engel, Michael S. and Ascher, John S.}
}
