@article {Filipjev1916,
	title = {Free-living nematodes in the collection of the {Zoological} {Museum} of the {Imperial Academy of Sciences in Petrograd}},
	journal = {Ezhigodnik Zoologicheskago Muzeya},
	volume = {21},
	year = {1916},
	pages = {59{\textendash}116},
	author = {Filipjev, I.}
}
