Meijer, W. G., Nienhuis-Kuiper, M. E., Hansen, T. A. (1999). Fermentative bacteria from estuarine mud: phylogenetic position of <i>Acidaminobacter hydrogenoformans</i> and description of a new type of Gram-negative, propionigenic bacterium as <i>Propionibacter pelophilus</i> gen. nov., sp. nov. <i> Int.J.Syst.Bacteriol. </i><b> 49 </b>: 1039-1044 .

Orla-Jensen, S. (1909). Die Hauptlinien des natürlichen Bakteriensystems. <i> Zentralbl.Bakteriol.Hyg.II Abt. </i><b> 22 </b>: 305-346 .
Holdemann, L. V., Cato, E. P., Moore, W. E. C., (1977). Anaerobe laboratory manual. Virginia Polytechn. Inst. and State Univ..

Gilchrist, T. C. (1900). A bacteriological and microscopical study of over 300 vesicular and pustular lesions of the skin, with a research upon the etiology of <i>acne vulgaris</i>. <i> Johns Hopkins Hosp.Rep. </i><b> 9 </b>: 409-430 .
Holdemann, L. V., Cato, E. P., Moore, W. E. C., (1977). Anaerobe laboratory manual. Virginia Polytechn. Inst. and State Univ..
Douglas, H. D., Gunter, S. E. (1946). The taxonomic position of <i>Corynebacterium acnes</i>. <i> J.Bacteriol. </i><b> 52 </b>: 15-23 .

Bernard, K. A., Shuttleworth, M., Munro, C., Forbes-Faulkner, J. C., Pitt, D., Norton, J. H., Thomas, A. D. (2002). <i>Propionibacterium australiense</i> sp. nov. derived from granulumatous bovine lesions. <i> Anaerobe </i><b> 8 </b>: 41-47 .
(2002). Validation of publication of new names and new combinations previously effectively published outside the IJSEM. List No. 88. <i> Int.J.Syst.Evol.Microbiol. </i><b> 52 </b>: 1915-1916 .

Moore, W. E. C., Holdeman, L. V., (1969). Anaerobic gram-negative non-sporeforming rods. In <i> Outline of clinical methods in anaerobic bacteriology 1st rev </i>, pp. 1-107. Edited by E. P. Cato, Virginia Polytech. Inst. Anaerobe Lab..
Holdemann, L. V., Cato, E. P., Moore, W. E. C., (1977). Anaerobe laboratory manual. Virginia Polytechn. Inst. and State Univ..
Eggerth, A. H. (1935). The Gram-positive non-spore-bearing anaerobic bacilli of human feces. <i> J.Bacteriol. </i><b> 30 </b>: 277-299 .