Xuyen, Do, 		Phuong, Vu, 		Hoan, Ha, AND 		Duc, Nguyen.
" Genus Opithandra B. L. Burtt and Species Opithandra Dinghushanensis W. T. Wang as New Records for the Flora  of Vietnam from Bac Huong Hoa Nature Reserve,  Quang Tri Province" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 32 Number 1S (15 March 2016)