1. Ballanis, C. A. (1997). Antenna theory analysis and design (2nd ed.). New York: Wiley.
2. Haupt, R. L., & Werner, D. H. (2007). Genetic algorithms in electromagnetics. Hoboken, NJ: IEEE Press/Wiley.
3. Er, M. H. (1990). Linear antenna array pattern synthesis with prescribed broad nulls. IEEE Transactions on Antennas and Propagation, 38, 1496–1498.
4. Dib, M. S.-Y. N.-N., & Khodier, M. (2008). Design of non-uniform circular antenna arrays using the particle swarm optimization. Journal of Electrical Engineering, 59(9), 216–220.
5. Zainud Deen, S., Mady E., & Awadalla, K. H. (2006). Controlled radiation pattern of circular antenna array. In IEEE anennas and propagation symposium (pp. 3399–3402).