@article {NHM,
	title = {Contributions {\`a} la faune des Turbellaria de la Russie. IV (in Russian)},
	journal = {Bull. Acad. Sci. Russia, 6th Series},
	volume = {13},
	number = {2},
	year = {1921},
	note = {not copied},
	pages = {1179-1197, one plate},
	type = {article},
	abstract = {Mentions:
Microstomum lineare
Microstomum giganteum
Macrostomum appendiculatum
Macrostomum viride
Does not mention Macrostomum korsakovi.},
	keywords = {Turbellaria},
	author = {Nasonov, N V}
}
