@article {20299,
	title = {Kubitzkia van der Werff, a superfluous name or not?},
	journal = {Annals of the Missouri Botanical Garden},
	volume = {75},
	year = {1988},
	pages = {1669},
	chapter = {1669},
	url = {http://www.biodiversitylibrary.org/item/87375$\#$page/1681/mode/1up},
	author = {van der Werff, Henk}
}
@article {19812,
	title = {Inclusion with doubt vs. exclusion with doubt},
	journal = {Taxon},
	volume = {37},
	year = {1988},
	pages = {133},
	chapter = {133},
	author = {Nicolson, D.H.}
}
@article {19811,
	title = {What is the value of an interrogation mark in plant descriptions?},
	journal = {Taxon},
	volume = {37},
	year = {1988},
	pages = {132-133},
	chapter = {132},
	author = {Kostermans, A.J.G.H.}
}
@article {19810,
	title = {Kubitzkia van der Werff, a new name for a genus of Neotropical Lauraceae},
	journal = {Taxon},
	volume = {35},
	year = {1986},
	pages = {164-166},
	chapter = {164},
	author = {van der Werff, Henk}
}
