References
- Klöpperpieper , A. , Rother , H. J. , Albers , J. and Ehses , K. H. 1982 . Ferroelectric Letters , 44 : 115
- Müser , H. E. and Schell , U. 1983 . to be published in the Proceedings of the EMF-5
- Sauerland , E. , Helwig , J. and Müser , H. E. Oct. 1983 . to be published in Thermochimica Acta
- Grindlay , J. 1970 . An Introduction to the Phenomenological Theory of Ferroelectricity , Oxford : Pergamon Press .