References
- Julio Gonzalo , A. J. of Phys. C , (inpress) and refs. therein
- Herringa , J. R. and Marrenga , M. 1975 . Physica A , 38 : 371
- Gonzalo , J. A. , de las Heras , C. and Vieira , S. 1980 . Ferroelectrics , 24 : 101
- de las Heras , C. , Gonzalo , J. A. and Vieira , S. 1981 . Ferroelectrics , 33 : 13 [Note that A1 has been determined directly from Fig. 2, because the corresponding numerical value in T.1 appears to be mistaken. Numerical values for A2 and Op D) are not quoted, since they may be seriously affected by the strong secondary pyroelectric contribution]
- Lawless , W. N. 1976 . Phys. Rev. B , 14 : 134
- Lawless , W. N. 1982 . Phys. Rev. B , 25 : 1730