New Modulation Techniques for Low-Cost Power and Bandwidth Efficient Satellite Earth Stations. - Tho Le-Ngoc; Kamilo Feher; Hiep Pham Van (IEEE Trans. Commun., 1982)

A Class of Two-Symbol-Interval Modems for Nonlinear Radio Systems. - Hiep Pham Van; Kamilo Feher (IEEE Trans. Commun., 1983)

TSI-OQPSK for Multiple Carrier Satellite Systems. - Hiep Pham Van; Kamilo Feher (IEEE Trans. Commun., 1984)