References
- North , D. M. and Wagner , C. N. J. 1969 . Phys. Lett. A , 30 : 440
- Waseda , Y. and Moriya , K. 1973 . Butt. Res. Inst. Miner. Dress. Metall., Sendai , 29 : 135
- Waseda , Y. and Suzuki , K. 1970 . Phys. Stat. Sol. , 39 : 669
- 1972 . Phys. Stat. Sol. (b) , 49 : 339
- Waseda , Y. and Yokoyama , K. 1974 . Butt. Res. Inst. Miner. Dress. Metall., Sendai , 30 : 9
- Waseda , Y. , Yokoyama , K. and Suzuki , K. 1974 . Phil. Mag. , 29 : 1427
- Wingfield , B. F. and Enderby , J. E. 1968 . Phys. Lett. A , 27 : 704
- Van Zytveld , J. B. , Enderby , J. E. and Cowlings , E. W. 1972 . J. Phys. F , 2 : 73
- 1973 . J. Phys. F , 3 : 1819