Nguyen, Alex T., Zhou, Xiangrong., Hadjitheodosiou, Michael., "A direct-to-ground architecture for supporting Commercial Communications from the International Space Station", 2002 IEEE International Conference on Communications, pp. 2989-2993, New York, NY, 2002
Nguyen, Alex T., Zhou, Xiangrong., Hadjitheodosiou, Michael., Baras, John S., "A direct-to-ground architecture for supporting commercial communications from the International Space Station", IEEE International Conference on Communications, Vol. 5, pp. 2989-2993, New York, NY, April 28 - May 2, 2002
