^Parker, Charles Thomas; Wigley, Sarah; Garrity, George M. (2008). Parker, Charles Thomas; Garrity, George M (eds.). "Taxonomy of the genus Gramella Nedashkovskaya et al. 2005". doi:10.1601/tx.8597 (inactive 2024-04-17). ((cite journal)): Cite journal requires |journal= (help)CS1 maint: DOI inactive as of April 2024 (link)
^Parte, Aidan; Krieg, Noel R.; Ludwig, Wolfgang; Whitman, William B.; Hedlund, Brian P.; Paster, Bruce J.; Staley, James T.; Ward, Naomi; Brown, Daniel (4 February 2011). Bergey's Manual of Systematic Bacteriology: Volume 4: The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes. Springer Science & Business Media. p. 226. ISBN978-0-387-68572-4.