1. , and , Microstrip antenna, theory and design, Peter Peregrinus, London, 1981.
2. and , Microstrip antennas, Artech House, Dedham, MA, 1980.
3. and (Eds.), Antenna engineering handbook, 2nd ed., McGraw-Hill, New York, 1984, Ch. 7.
4. Advances in e;Mosig,1982
5. IEE electroma;James,1989