@book {19856,
	title = {Caroli a Linn{\'e} Species Plantarum},
	volume = {2},
	year = {1799},
	publisher = {G.C. Nauk},
	organization = {G.C. Nauk},
	address = {Berolini [Berlin]},
	url = {http://www.biodiversitylibrary.org/item/14558$\#$page/2/mode/1up},
	author = {Willdenow, Carl L.}
}
