References
- Singh, M. D., Kosta, S. P. et al., “A beam compression technique (or the log-periodic array”, J. Instn Telecom. Engrs (India), 16 (12) (1970), 884–87.
- Kraus, J. D. (McGraw-Hill Book Co. Inc., New York), 1950.
- Jordan, E. C., Electromagnetic waves and radiating systems(Englewood Cliff., N.J., Prentice Hall), 1950.