1. Fatal Occupational Injuries by Event or Exposure, 2001–2006;BLS,2007
2. Census of Fatal Occupational Injuries (CFOI) — Current and Revised Data;BLS,2009
3. Ford Motor Company (2009). “New Ford mirror Design and Radar Systems to Minimize Blind Spot Risk.” (Accessed May 10, 2009).
4. Studies on Heavy Equipment Blind Spots and Internal Traffic Control;Fosbroke,2004
5. Pro-active Real-time Personnel Warning System;Fullerton,2009