1. Roland, H.E., Moriarty, B.: System Safety Engineering and Management, 2nd edn. John Wiley & Sons, Inc., New York (1990)
2. Heinrich, H.W.: Industrial Accident Prevention. McGraw Hill, New York (1936)
3. Rosenberg, B.: Next-Gen Nav/Comm. Aerospace Engineering and Manufacturing, 26–29 (2008)
4. Detect, Sense, and Avoid Safety Metrics (RTCA, RTCA Special Committee (SC) 203 Working Group 3, RTCA, Inc., Washington, DC, April 5 (2007a)
5. Guidance Material and Considerations for Unmanned Aircraft Systems (RTCA, DO-304, RTCA Special Committee (SC) 203, RTCA, Inc., Washington, DC, March 22 (2007b)