Stolle RJ, Beck LR. Prevention and treatment of rheumatoid arthritis. US Patent 4,732,757 dated Mar 22 1988
Opinion 26. Designation of neotype strains (cultures) of type species of the bacterial genera Salmonella, Shigella Arizona, Escherichia, Citobacter, and Proteus of the family Enterobacteriaceae. Int. Bull. Bacteriol. Nomencl. Taxon. 13: 35-36, 1963.
Ackrell BA, et al. Multiple forms of bacterial hydrogenases. J. Bacteriol. 92: 828-838, 1966. PubMed: 5926752
. . J. Gen. Microbiol. 38: 417-422, 1965.
Gingeras TR, et al. Two new restriction endonucleases from Proteus vulgaris. Nucleic Acids Res. 9: 4525-4536, 1981. PubMed: 6272209