@book {2995,
	title = {Die Biologie von Monotropa hypopitys L. und Neottia nidus avis L. unter vergleichender Hinzuziehung anderer Orchideen},
	year = {1873},
	month = {1873///},
	publisher = {Dieterich{\textquoteright}sche Univ. Buchdruckerei},
	organization = {Dieterich{\textquoteright}sche Univ. Buchdruckerei},
	address = {G{\"o}ttingen},
	author = {Drude, O.}
}
@book {2773,
	title = {On the metabolism of Monotropa hypopitys},
	series = {Proc. IX Int. Bot. Congress, Montreal},
	year = {1959},
	month = {1959///},
	pages = {35 - 36},
	author = {Bj{\"o}rkman, E.}
}
