References
- Brixner , L. H. , Flippen , R. B. and Jeitschko , W. 1975 . Mat. Res. Bull. , 10 : 1327
- Midorikawa , M. , Kashida , H. and Ishibashi , Y. 1981 . J. Phys. Soc. Jpn. , 50 : 1592
- Midorikawa , M. , Kashida , H. , Sawada , A. and Ishibashi , Y. 1980 . J. Phys. Soc. Jpn. , 49 : 1095
- Indenbom , V. L. 1960 . Sov. Phys. Crystallogr. , 5 : 106
- Levanyuk , A. P. and Sannikov , D. G. 1968 . Zh. Eksp. Teor. Fiz. , 55 : 256
- Dvorak , V. 1974 . Ferroelectrics , 7 : 1
- Sawyer , C. B. and Tower , C. H. 1930 . Phys. Rev , 35 : 269
- 1959 . International Tables for X-ray Crystallogrphy , Vol. II , Birmingham : Kynoch Press .
- Ishibashi , Y. , Dvorak , V. and Midorikawa , M. 1981 . J. Phys. Jpn. , 50 : 2317