"DoD Modeling and Simulation (M&S) Glossary", DoD 5000.59-M, DoD, January 1998 "Directives Division"(PDF). Archived from the original(PDF) on 2007-07-10. Retrieved 2009-04-22.
faa.gov
hf.tc.faa.gov
Sollenberger, R. (2005). Human-in-the-Loop Simulation Evaluating the Collocation of the User Request Evaluation Tool. U.S. Department of Transportation Federal Aviation Administration, 1. Retrieved July 19, 2010, from http://hf.tc.faa.gov/technotes/dot-faa-ct-tn04-28.pdfArchived 2010-06-09 at the Wayback Machine
"DoD Modeling and Simulation (M&S) Glossary", DoD 5000.59-M, DoD, January 1998 "Directives Division"(PDF). Archived from the original(PDF) on 2007-07-10. Retrieved 2009-04-22.
Sollenberger, R. (2005). Human-in-the-Loop Simulation Evaluating the Collocation of the User Request Evaluation Tool. U.S. Department of Transportation Federal Aviation Administration, 1. Retrieved July 19, 2010, from http://hf.tc.faa.gov/technotes/dot-faa-ct-tn04-28.pdfArchived 2010-06-09 at the Wayback Machine