1. USDA Center for Food Safety and Applied Nutrition (CFSAN), Clostridium perfringens, Handbook of the Bad Bug Book (Chapter 11) http://vm.cfsan.fda.gov/∼mow/intro.html
2. W.T. Keeton, Biological Science, 3rd Edition, W.W. Norton & Company, New York, 1980, pp. 925.
3. R.K. Dart, Microbiology for the Analytical Chemist, The Royal Society of Chemistry, Cambridge, UK, 1996, pp. 84.
4. Bacterial Spore Detection and Determination by Use of Terbium Dipicolinate Photoluminescence
5. Bacterial Endospore Detection Using Terbium Dipicolinate Photoluminescence in the Presence of Chemical and Biological Materials