1. , Theory of Electric Polarisation II, Elsevier, Amsterdam 1978, p. 457ff.
2. Physical Properties of Liquid Crystalline Materials, Gordon and Breach, New York 1980, p. 49ff.
3. Polare Molekeln, S. Hirzel, Leipzig 1929.
4. Electric Moments of Molecules in Liquids
5. The Dielectric Polarization of Polar Liquids