Williams, Norris H., W. Mark Whitten, and Calalway H. Dodson. 1984. “PRELIMINARY ANALYSES OF THE FLORAL FRAGRANCES OF SPECIES OF ‘ACINETA, HOULETTIA, LUDDEMANNIA, LYCOMORMIUM, PAPHINIA, AND SIEVEKINGIA’ (ORCHIDACEAE)”. Selbyana 7 (2/4):315-17. https://journals.flvc.org/selbyana/article/view/120662.