Tetrameranthus (Annonaceae) revisited including a new species

Por Westra, Lubbert Y.T., Maas, Paul J. M.
Publicado em 2012

Costus loangensis, an exciting new species from Gabon, Africa

Por de Kamer, Hiltje Maas-van, Maas, Paul J. M., Specht, Chelsea D.
Publicado em 2012

Revisions of Ruizodendron and Pseudephedranthus (Annonaceae) including a new species and an overview of most up-to-date revisions of Neotropical Annonaceae genera

Por Erkens, Roy H.J., Oosterhof, Jessica, Westra, Lubbert Y.T., Maas, Paul J.M.
Publicado no PhytoKeys (2017)