1. “Microstrip - a new transmission technology for the kilomegacycle range,”;Greig;Proc. IRE,1952
2. G. A. Deschamps “Microstrip microwave antennas,” 3rd USAF Symp. on Antennas 1953
3. J. Q. Howell “Microstrip antennas,” Dig. IEEE Int. Symp. Antennas Propagat 177 180 1972
4. “Conformal microstrip antennas and microstrip phased arrays,”;Munson;IEEE Trans. Antennas Propagat,1974
5. “Analysis of microstrip disk resonator,”;Itoh;Arch. Elek. Ubertagung,1973