Fuller, M.E., S.H. Streger, R.K. Rothmel, B.J. Mailloux, J.A. Hall, T.C. Onstott, J.K. Fredrickson, D.L. Balkwill, and M.F. DeFlaun. 2000. “Development of a Vital Fluorescent Staining Method for Monitoring Bacterial Transport in Subsurface Environments”. Applied and Environmental Microbiology 66: 4486-96. doi:10.1128/AEM.66.10.4486-4496.2000.