1. Colley G.J., Eddles J.A., Glodman B.R., Killick E.A. ‘An electronically steered radar aerial’, Journal of the Royal Naval Scientific Society, Vol 22, No 2.
2. Electronic sector scanning;Tucker;Journal of the British Institute of Radio Engineers,1958
3. Electronic sector scanning for ultrasonic diagnosis;Somer;Ultrasonics,1968