@article {2960,
	title = {{\"U}ber j{\"a}hrliche Schwankungen im Bl{\"u}hen von Monotropa hypopitys (Monotropaceae) und einiger Orchideen in Finnland},
	journal = {Ann. Bot. Fenn.},
	volume = {22},
	year = {1985},
	month = {1985///},
	pages = {207 - 212},
	author = {S{\"o}yrinki, N.}
}
@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.}
}
