1. Getting civil with UAVs: How soon?;Zaloga;Unmanned Syst,2007
2. Anand S. Domestic use of unmanned aircraft systems: evaluation of policy constraints and the role of industry consensus standards. J Eng Public Policy 11.
3. Federal Aviation Administration. Unmanned aircraft operations in the national airspace system. Docket no. FAA-2006-25714; February 2007.
4. Sabatini N. Assuring the safe integration of UAS. Unmanned aircraft systems, the global perspective 2007/2008; 2007. p. 11.
5. Hempe D. Unmanned aircraft systems in the United States. In: Presented to the US/Europe international safety conference, June 2006.