@inbook {4515,
	title = {A new Sciaphila (Triuridaceae) from the Palau Islands},
	booktitle = {Flore du Gabon},
	volume = {41},
	year = {2010},
	pages = {64-66},
	publisher = {Margraf},
	organization = {Margraf},
	address = {Weikersheim},
	author = {Maas, P. J. M. and Maas-van de Kamer, H.},
	editor = {Sosef, M. S. M.}
}
@inbook {4513,
	title = {Burmanniaceae},
	booktitle = {Flore du Gabon},
	volume = {41},
	year = {2010},
	pages = {12-22},
	publisher = {Margraf},
	organization = {Margraf},
	address = {Weikersheim},
	author = {Maas, P. J. M. and Maas-van de Kamer, H.},
	editor = {Sosef, M. S. M.}
}
@inbook {3984,
	title = {Thismiaceae},
	booktitle = {Flore du Gabon},
	volume = {41},
	year = {2010},
	pages = {60-62},
	publisher = {Margraf},
	organization = {Margraf},
	address = {Weikersheim},
	author = {Maas-van de Kamer, H. and Maas, P. J. M.},
	editor = {Sosef, M. S. M.}
}
@article {3368,
	title = {Burmanniaceae},
	journal = {Flora Neotropica Monograph},
	volume = {42},
	year = {1986},
	month = {1986///},
	pages = {1 - 189},
	author = {Maas, P. J. M. and Maas-van de Kamer, H. and Benthem, J. van and Snelders, H. C. M. and R{\"u}bsamen, T.}
}
@article {3249,
	title = {Voyria and Voyriella (Saprophytic Gentianaceae)},
	journal = {Flora Neotropica Monograph},
	volume = {41},
	year = {1986},
	month = {1986///},
	pages = {1 - 93},
	author = {Maas, P. J. M. and Ruyters, P.}
}
@article {3202,
	title = {Triuridaceae},
	journal = {Flora Neotropica Monograph},
	volume = {40},
	year = {1986},
	month = {1986///},
	pages = {1 - 55},
	author = {Maas, P. J. M. and R{\"u}bsamen, T.}
}
@article {2970,
	title = {Flora vascular de la Isla Espa{\~n}ola: Burmanniaceae},
	journal = {Moscosoa},
	volume = {6},
	year = {1990},
	month = {1990///},
	pages = {134 - 139},
	author = {Maas, P. J. M. and Maas, H.}
}
@article {2884,
	title = {A new Thismia (Burmanniaceae) from French Guiana},
	journal = {Brittonia},
	volume = {39},
	year = {1987},
	month = {1987///},
	pages = {376 - 378},
	author = {Maas, H. and Maas, P. J. M.}
}
@inbook {2865,
	title = {Burmanniaceae},
	booktitle = {Flora of the Guianas, Series A: Phanerogams},
	volume = {6},
	year = {1989},
	month = {1989///},
	pages = {3 - 43},
	publisher = {Koeltz Scientific Books},
	organization = {Koeltz Scientific Books},
	address = {Koenigstein},
	author = {Maas, P. J. M. and Maas-van de Kamer, H.},
	editor = {G{\"o}rts-van Rijn, A. R. A.}
}
@article {2870,
	title = {Flora of the Venezuelan Guyana. VII. Burmanniaceae},
	journal = {Ann. Missouri Bot. Gard.},
	volume = {76},
	year = {1989},
	month = {1989///},
	pages = {956 - 958},
	author = {Maas, P. J. M. and Maas, H.}
}
@article {2836,
	title = {Triuridopsis, a new monotypic genus in Triuridaceae},
	journal = {Pl. Syst. Evol.},
	volume = {192},
	year = {1994},
	month = {1994///},
	pages = {257 - 262},
	author = {Maas-van de Kamer, H. and Maas, P. J. M.}
}
@article {2810,
	title = {Saprophytes pro parte. Introduction.},
	journal = {Flora Neotropica Monograph},
	volume = {40, 41, 42},
	year = {1986},
	month = {1986///},
	pages = {1 - 5},
	author = {Maas, P. J. M. and Benthem, J. van and Maas-van de Kamer, H. and R{\"u}bsamen, T. and Ruyters P. and Snelders, H. C. M.}
}
@article {2815,
	title = {Ecuadorian saprophytes, a preliminary review},
	journal = {Opera Bot.},
	volume = {92},
	year = {1987},
	month = {1987///},
	pages = {131 - 145},
	author = {Maas, P. J. M. and Maas, H.}
}
@inbook {2788,
	title = {Neotropical Saprophytes},
	booktitle = {Tropical Botany},
	year = {1979},
	month = {1979///},
	pages = {365 - 370},
	publisher = {Acad. Press},
	organization = {Acad. Press},
	address = {London},
	author = {Maas, P. J. M.},
	editor = {Larsen, K. and Nielsen, B.}
}
@article {2789,
	title = {Notes on new world saprophytes II},
	journal = {Acta Bot. Neerl.},
	volume = {30},
	year = {1981},
	month = {1981///},
	pages = {139 - 149},
	author = {Maas, P. J. M.}
}
@article {2771,
	title = {Anatomy},
	journal = {Flora Neotropica MonographVoyria and Voyriella (Saprophytic Gentianaceae)},
	volume = {41},
	year = {1986},
	month = {1986///},
	pages = {25 - 29},
	author = {Welle, B. J. H. ter},
	editor = {Maas, P. J. M. and Ruyters, P.}
}
@article {2740,
	title = {Notes on new world saprophytes I. I. Triuridaceae},
	journal = {Acta Bot. Neerl.},
	volume = {28},
	year = {1979},
	month = {1979///},
	pages = {89},
	author = {Maas, P. J. M.}
}
@article {2719,
	title = {Seed micromorphology},
	journal = {Flora Neotropica MonographVoyria and Voyriella (Saprophytic Gentianaceae)},
	volume = {41},
	year = {1986},
	month = {1986///},
	pages = {9 - 25},
	author = {Bouman, F. and Devente, N.},
	editor = {Maas, P. J. M. and Ruyters, P.}
}
