@inbook {7241,
	title = {Stomach structure, classification and evolution of the Bivalvia},
	booktitle = {The Bivalvia - Proceedings of a Memorial Symposium in Honour of Sir Charles Maurice Yonge, 1986},
	year = {1990},
	note = {PDF},
	pages = {73-95},
	publisher = {Hong Kong University Press},
	organization = {Hong Kong University Press},
	address = {Hong Kong},
	keywords = {bivalvia, evolution, mollusca, stomach, systematics},
	author = {Purchon, R. D.},
	editor = {Morton, Brian}
}
@article {7043,
	title = {New ideas on bivalve systematics},
	journal = {Paleontological Journal},
	volume = {2},
	year = {1971},
	pages = {141-155},
	keywords = {anatomy, bivalvia, evolution, mollusca, shell morphology, stomach, systematics, taxonomy},
	author = {Nevesskaya, L. A. and Scarlato [Skarlato], O. A. and Starobogatov, Ya. I. and Eberzin, A. G.}
}
