Dillman, Brian, Renee Hendricks, Michael Petrelli, and Stephen Elliott. “Biometric Access to Training Devices As a Security Protocol in Flight Training”. Journal of Air Transport Studies 1, no. 1 (January 1, 2010): 82-95. Accessed April 20, 2024. https://jats.aviationsociety.gr/index.php/JATS/article/view/116.