1. ORPS Report EM-RFO-KHLL-371OPS-2003-0011, Poor housekeeping poses fire hazard. http://rockyflats.apps.em.doe.gov/references/068-ORPs%20Report-2003-0011.pdf: link verified October 5, 2012.
2. Human performance fundamentals course reference, Institute of Nuclear Power Operations, 2002.