@article {37315,
	title = {Allozyme survey and relationships of Limnoporus St{\r a}l species (Heteroptera: Gerridae)},
	volume = {122},
	year = {1990},
	pages = {29-42},
	publisher = {The Canadian Entomologist},
	author = {Sperling, F. A. H. and Spence, J. R.}
}
