@article {dall_relations_1920,
	title = {On the relations of the sectional groups of \textit{Bulimulus of the subgenus \textit{Naesiotus Albers},
	journal = {Journal of the Washington Academy of Sciences},
	volume = {10},
	number = {5},
	year = {1920},
	month = {mar},
	pages = {117{\textendash}122},
	author = {Dall, William Healey}
}
