@book {18443,
	title = {Systema laurinarum},
	year = {1836},
	pages = {720},
	publisher = {Veit},
	organization = {Veit},
	address = {Berlin},
	url = {http://www.biodiversitylibrary.org/item/9516},
	author = {Christian G.D. Nees von Esenbeck}
}
