1. J. Chan, R. DalBello, in Data Sharing to Improve Close Approach Monitoring and Safety of Flight, ed. by J.N. Pelton, R. Jakhu, Space Safety Regulations and Standards (Elsevier, New York, 2010)
2. European Space Agency, Interplanetary Communications Action 1: Requirements Analysis, Nov 2008,
telecom.esa.int/telecom/www/object/index.cfm?fobjectid=29325
3. A. Hagar, in Quantum Computing. Stanford Encyclopedia of Philosophy (2007)
4. C. Hoeber, Annual satellite update, AIAA Annual Review of Satellite Communications
5. T. Iida, J.N. Pelton, in The Next Thirty Years, ed. by T. Iida, J.N. Pelton, E. Ashford. Satellite Communications in the 21st Century: Trends and Technologies (American Institute of Aeronauticcs and Astronautics, Reston, 2003), pp. 188–190