1. Philippou, G.Y.: ‘Microwave detection of buried objects using Focussed Beams’, November, 1975, Ph.D. thesis, Queen Mary College, Department of Electrical & Electronic Engineering, Mile End Road, London
2. ‘Microwave detection of buried objects’, Contract Report, AT/2042/059/RL, Queen Mary College, Department of Electrical & Electronic Engineering, Mile End Road, London, May, 1976