^Parker, Charles Thomas; Wigley, Sarah; Garrity, George M. (2009). Parker, Charles Thomas; Garrity, George M (eds.). "Taxonomy of the genus Thermobrachium Engle et al. 1996". doi:10.1601/tx.4111 (inactive 2024-04-17). {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: DOI inactive as of April 2024 (link)