@article {20294,
	title = {Plantae Krukovianae - IV},
	journal = {Phytologia},
	volume = {1},
	year = {1935},
	pages = {113-126},
	chapter = {113},
	url = {http://www.biodiversitylibrary.org/item/48981$\#$page/125/mode/1up},
	author = {Smith, Albert C.}
}
@article {20179,
	title = {Additamenta monographica 1904},
	journal = {Bulletin de l{\textquoteright}Herbier Boissier},
	volume = {s{\'e}r. 2, 5},
	year = {1905},
	pages = {232-247},
	chapter = {232},
	url = {http://www.biodiversitylibrary.org/item/104932$\#$page/254/mode/1up},
	author = {Mez, Carl}
}
@article {19979,
	title = {The botany of the Guayana Highland - Part V},
	journal = {Memoirs of the New York Botanical Garden},
	volume = {10},
	year = {1964},
	month = {02/1964},
	pages = {1-278 [44-123 by C.K. Allen]},
	chapter = {1},
	url = {http://www.biodiversitylibrary.org/item/150908$\#$page/469/mode/1up},
	author = {Maguire, Bassett and Wurdack, John J. and Allen, Caroline K.}
}
