@article {20037,
	title = {Contribution a l{\textquoteright}{\'e}tude du genre Beilschmiedia de l{\textquoteright}Afrique tropicale},
	journal = {Bulletin du Jardin botanique de l{\textquoteright}{\'E}tat {\`a} Bruxelles},
	volume = {20},
	year = {1950},
	pages = {197-226.},
	chapter = {197},
	author = {Robyns, W. and Wilczek, Rudolf}
}
@article {20175,
	title = {La vegetacion de la Quebrada del Tigre (Zapallar) y, en especial, sus helechos},
	journal = {Revista Universitaria. Universidad Catolica de Chile},
	volume = {35},
	year = {1950},
	pages = {53-67},
	chapter = {53},
	author = {Looser, Gualterio}
}
@book {19857,
	title = {81e Famille. - Laurac{\'e}es},
	series = {Flore de Madagascar et des Comores (Plantes Vasculaires)},
	year = {1950},
	pages = {90},
	publisher = {Firmin-Didot},
	organization = {Firmin-Didot},
	address = {Paris},
	url = {http://www.biodiversitylibrary.org/item/38222$\#$page/1/mode/1up},
	author = {Kostermans, A.J.G.H.}
}
@article {18510,
	title = {Plantas novas ou pouco conhecidas da Amaz{\^o}nia},
	journal = {Boletim t{\'e}cnico do Instituto Agron{\^o}mico do Norte},
	volume = {19},
	year = {1950},
	author = {Ducke, Adolpho}
}
