CHAOWASKU, T., P. J. KEßLER, S. PUNNADEE, and R. W. VAN DER HAM. “Taxonomic Novelties and Pollen Morphological Study in the Genus <em>Neo-uvaria</Em> (Annonaceae)”. Phytotaxa, vol. 32, no. 1, Nov. 2011, pp. 27–42, doi:10.11646/phytotaxa.32.1.3.