Nagahama, A., S. Tagane, P. Souladeth, A. Sengthong, and T. Yahara. “Gentiana bolavenensis (Gentianaceae), a new species from Dong Hua Sao National Protected Area in southern Laos”. Thai Forest Bulletin (Botany), vol. 47, no. 2, July 2019, pp. 133-6, doi:10.20531/tfb.2019.47.2.02.