1. Allen, C. Astrophysical Quantities, 3rd ed., Athlete Press, London, 34, 1973.
2. Bayramian, A., Anklam, T., et al. Compact, efficient laser systems required for laser inertial fusion energy, in: Proc. Conf. Technology of Fusion Energy, 2010.
3. Beckers, J. Adaptive optics for astronomy – principles, performance and applications, in: G. Burbidge, G. (Ed.), Annual Review of Astronomy and Astrophysics, 31, A94–12726 02–90, pp. 13–62, 1993.
4. Bender, M. Flexible and low-cost dragon spacecraft for orbital debris removal, in: Proc. NASA/DARPA Orbital Debris Conference, 2009.