@article {3821,
	title = {Turbellarien der nordschwedischen Hochgebirge},
	journal = {Naturwissenschaftliche Untersuchungen des Sarekgebirges in Schwedisch-Lappland},
	volume = {4},
	number = {Zoologie},
	year = {1917},
	note = {no print},
	pages = {679-742},
	abstract = {Mentions:
Macrostomum appendiculatum},
	keywords = {Macrostomum, Systematics},
	author = {von Hofsten, N}
}
@article {pdf,
	title = {Studien {\"u}ber Turbellarien aus dem Berner Oberland},
	journal = {Zeitschrift f{\"u}r wissenschaftliche Zoologie},
	volume = {85},
	year = {1907},
	note = {2946},
	pages = {391-654},
	type = {article},
	abstract = {Mentions:
Microstomum lineare
Macrostomum appendiculatum
Macrostomum viride},
	keywords = {Macrostomum},
	author = {von Hofsten, N}
}
@article {Signatur: Pf 334,
	title = {Neue Beobachtungen {\"u}ber die Rhabdocoelen und Alloecoelen der Schweiz},
	journal = {Zoologiska Bidrag fr{\r a}n Uppsala},
	volume = {1},
	number = {1-84},
	year = {1911},
	note = {get},
	type = {article},
	keywords = {Macrostomum},
	author = {von Hofsten, N}
}
@article {Signatur: Nat Zs,
	title = {Revision der Schweizerischen Rhabdocoelen und Alloeecoelen},
	journal = {Revue Suisse de Zoologie},
	volume = {20},
	year = {1912},
	note = {get},
	pages = {543-687},
	type = {article},
	keywords = {Macrostomum},
	author = {von Hofsten, N}
}
