@article {34013,
	title = {The seasonal food habits of mayfly (Ephemeroptera) nymphs from three Alberta, Canada, streams, with special reference to absolute volume and size particles ingested},
	volume = {65},
	year = {1983},
	pages = {197-234},
	publisher = {Archiv f?r Hydrobiologie},
	url = {http://www.famu.org/mayfly/pubs/pub_h/pubhamiltonh1983p197.pdf},
	author = {Hamilton, H. R. and Clifford, H. F.}
}
