Vora, P., P. Tiwari, R. Bhattacharjee, A. Bhattacharyya, and M. Jyothi. “Radio Frequency Seeker Modelling and Seeker Filter Design”. Defence Science Journal, Vol. 55, no. 3, July 2005, pp. 337-48, doi:10.14429/dsj.55.1997.