1. American Conference of Governmental Industrial Hygienists (ACGIH) 19971997 TLVs and BEIs. Threshold Limit Values for Chemical Substances and Physical Agents: Biological Exposure IndicesCincinnati, OH
2. Carlsen TM MacQueen DH Krauter PW 2001Sampling Requirements for Chemical and Biological Agent Decontamination Efficacy VerificationLawrence Livermore National Laboratory, Livermore, CA, UCRL-AR-143245
3. Detection of anthrax spores in endemic regions of northern Canada