1. Abe, K., K. Uchino and S. Nomura, 1986: Ferroelectrics, 68, 215.
2. Adair, J.H., M.A. Janney, G.Y. Onoda, D.V. Miller and R.E. Newnham, 1987: Presented at 89th Am. Ceram. Soc. Meeting.
3. Allied Coloids, 1990: Technical and Processing Data, No. TPD 6022 “Dispex”.
4. Arlt, G., D. Hennings and G. de With, 1985: J. Appl. Phys., 58, 1619.
5. Buessem, W.R. and T.I. Prokopowicz, 1976: Ferroelectrics, 10, 225.