@book {19968,
	title = {Sweet{\textquoteright}s Hortus Britannicus},
	volume = {2},
	year = {1826},
	publisher = {James Ridgway},
	organization = {James Ridgway},
	edition = {1},
	address = {London},
	url = {http://www.biodiversitylibrary.org/item/95166$\#$page/7/mode/1up},
	author = {Sweet, Robert}
}
@book {19826,
	title = {Bijdragen tot de Flora van Nederlandsch Indi{\"e}},
	volume = {11},
	year = {1826},
	publisher = {Ter Lands Drukkerij},
	organization = {Ter Lands Drukkerij},
	address = {Batavia},
	url = {http://www.biodiversitylibrary.org/item/9224$\#$page/249/mode/1up},
	author = {Blume, Carl L}
}
