References
- Ouchi , H. , Nagano , K. and Hayakawa , S. 1965 . J. Am. Ceram. Soc. , 48 : 630
- Ouchi , H. , Nishida , M. and Hayakawa , S. 1966 . ibid. , 49 : 577
- Ouchi , H. 1968 . ibid. , 51 : 169
- 1961 . IRE Standards on Piezoelectric Crystals: Measurements of Piezoelectric Ceramics, 1961 . Proc. IRE , 49 : 1161
- Carl , K. and Hardtl , K. H. 1971 . Phys. Stat. Sol. (a) , 8 : 87