1. Jones, R.G.: ‘Millimetre wave dielectric measurements using open resonators’, Chamberlain, J., Chantry, G.W., High frequency dielectric measurements, (IPC Science & Technology Press 1973), p. 78–82
2. Yu, P.K.: ‘Dielectric measurements using an open resonator’, 1970, Ph.D. thesis, University College London, Department of Electronic & Electrical Engineering