Baron S, Salton MRJ, Kim KS. Chapter 2 "Structure". Baron's Medical Microbiology (4th ed.), Univ of Texas Medical Branch, 1996. ISBN 0-9631172-1-1. PMID21413343.
Potts M. (1994). Desiccation tolerance of prokaryotes. Microbiological Reviews. Dec;58(4):755-805. PMID7854254.
Scholl D, Adhya S, Merril C. (2005). Escherichia coli K1's capsule is a barrier to bacteriophage T7. Applied Environmental Microbiology. Aug;71(8):4872-4. PMID16085886.
TF McCaul, AJ Dare, JP Gannon, and AJ Galbraith. (1994). In vivo endogenous spore formation by Coxiella burnetii in Q fever endocarditis . Journal of Clinical Pathology. Nov; 47(11):978–981. PMID7829692.
