Hess BM, BLD Kaiser, MA Sydor, DS Wunschel, CJ Bruckner-Lea, and JR Hutchison.  2014.  "Discerning Viable from Nonviable Yersinia pestis pgm- and Bacillus anthracis Sterne using Propidium Monoazide in the Presence of White Powders."  PNNL-SA-107253, Pacific Northwest National Laboratory, Richland, WA.