@article {NHM,
	title = {Contributions {\`a} la faune des Turbellaria de la Russie. I (in Russian)},
	journal = {Bull. Acad. Sci. Russia, 6th Series},
	volume = {13},
	number = {2},
	year = {1921},
	note = {not copied},
	pages = {619-646, three plates},
	type = {article},
	abstract = {Mentions:
Microstomum lineare
Microstomum giganteum
Macrostomum appendiculatum
Does not mention Macrostomum korsakovi.},
	keywords = {Turbellaria},
	author = {Nasonov, N V}
}
@article {pdf,
	title = {Compte-rendu d{\textquoteright}une mission scientifique en {\'e}t{\'e} 1921 aux environs de Petrograd [etc.]},
	journal = {Bulletin de l{\textquoteright}Acad{\'e}mie des Sciences de l{\textquoteright}URSS},
	volume = {6},
	number = {15},
	year = {1921},
	note = {2931},
	pages = {145-146},
	type = {article},
	abstract = {Describes:
Macrostomum obtusum korsakovi n. var.},
	keywords = {Macrostomum},
	author = {Nasonov, N V}
}
@article {pdf,
	title = {La faune des Turbellaria du gouvernement de Petrograd.},
	journal = {Comptes Rendus de l{\textquoteright}Acad{\'e}mie des Sciences de Russie},
	year = {1924},
	note = {2933},
	pages = {12-15},
	type = {article},
	abstract = {Mentions:
Macrostomum appendiculatum
Macrostomum viride
Macrostomum obtusum
Macrostomum obtusum korsakovi},
	keywords = {Macrostomum},
	author = {Nasonov, N V}
}
@article {NHM,
	title = {Turbellarian Fauna of the Kola Penninsula (in Russian)},
	journal = {Bull. Acad. Sci. Russia},
	volume = {6},
	number = {19},
	year = {1925},
	note = {not copied},
	pages = {53-74},
	type = {article},
	abstract = {Mentions:
Microstomum lineare
Macrostomum appendiculatum},
	keywords = {Turbellaria},
	author = {Nasonov, N V}
}
@article {pdf,
	title = {Die Turbellarienfauna des Leningrader Gouvernements},
	journal = {Bulletin de l{\textquoteright}Acad{\'e}mie des Sciences de l{\textquoteright}URSS},
	volume = {6},
	number = {15},
	year = {1926},
	note = {2929},
	pages = {145-146},
	type = {article},
	abstract = {Mentions:
Macrostomum viride
Macrostomum obtusum
Macrostomum obtusum korsakovi},
	keywords = {Macrostomum},
	author = {Nasonov, N V}
}
@article {pdf,
	title = {Zur Fauna der Turbellaria Rhabdocoelida der Japanischen S{\"u}sswasserbecken},
	journal = {Comptes Rendus de l{\textquoteright}Acad{\'e}mie des Sciences de l{\textquoteright}URSS},
	volume = {18},
	year = {1929},
	note = {2932},
	pages = {423-428},
	type = {article},
	abstract = {Mentions:
Macrostomum saifunicum n. sp.},
	keywords = {Macrostomum},
	author = {Nasonov, N V}
}
@article {pdf,
	title = {{\"U}ber den Heliotropismus der Turbellaria rhabdocoelida des Baikalsees},
	journal = {Trudy Laboratorii eksperimental{\textquoteright}noi zoologii i morfologii zhivotnykh (Works of the laboratory of experimental Zoology and morphology of animals of the academy of sciences)},
	volume = {4},
	year = {1935},
	note = {2940},
	pages = {195-204},
	type = {article},
	abstract = {Describes:
Macrostomum auriculatum n. sp.
Mentions:
Macrostomum appendiculatum},
	keywords = {Macrostomum},
	author = {Nasonov, N V}
}
@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}
}
