@book {18456,
	title = {Caroli Linnaei systema vegetabilium editio decima sexta, curae posteriores},
	volume = {4(2)},
	year = {1827},
	publisher = {Dieterich},
	organization = {Dieterich},
	address = {G{\"o}ttingen},
	url = {http://www.biodiversitylibrary.org/item/15255$\#$page/593/mode/1up},
	author = {Sprengel, Kurt P. J.}
}
