W. M. V. Beek

A measuring device for the determination of the electric permittivity of conducting liquids in the frequency range 1-100 MHz

M. Mandel, F. V. D. Touw, W. M. V. Beek, 1976 .

A measuring device for the determination of the electric permittivity of conducting liquids in the frequency range 2-500 kHz. I. The bridge

M. Mandel, F. V. D. Touw, J. D. Goede, 1975 .

Dielectric behavior of aqueous solutions of sodium polyphosphates of low degree of polymerization

M. Mandel, T. Odijk, F. V. D. Touw, 1976 .