@book {3328,
	title = {{\'E}tudes sur les infusoires d {\textquoteright}eau douce.},
	year = {1922},
	note = { General, Species Authority, Diags.},
	pages = {331},
	publisher = {Georg et Cie},
	organization = {Georg et Cie},
	address = {Gen{\`e}ve},
	keywords = {Litonotus cygnus, Loxophyllum helus, Pseudomicrothorax agilis, Rhabdostyla inclinans, Supraspathidium veriforme, Tokophrya infusionem, Trochilia minuta, Trochiliopsis opaca, Vaginicola tincta},
	author = {Penard, E.}
}
