@article {2811,
	title = {{\"U}ber die Periodizit{\"a}t im Bl{\"u}hen von Epipogium aphyllum (Orchidaceae)},
	journal = {Memoranda Soc. Fauna Fl. Fenn.},
	volume = {63},
	year = {1987},
	month = {1987///},
	pages = {63 - 72},
	author = {S{\"o}yrinki, N.}
}
