1. in: Sneath, P. H. A., Mair, N. S., Sharpe, M. E., Holt, J. G. (Eds.), Bergey's manual of systematic bacteriology vol. 2., Williams & Wilkins, Baltimore MD 1986, pp. 1418–1434.
2. PhD Thesis, University of Paris, 1900.
3. in: Buchanan, R. E., Gibbons, N. E. (Eds.), Bergey's manual of determinative bacteriology vol 8., Williams & Wilkins, Baltimore MD 1974, pp. 669–676.