1. V. A. Ignatchenkov and M. M. Karpenko, Zh. Tekh. Fiz. 38, 200 (1968) [Sov. Phys. Tech. Phys. 13 (1968)].
2. H.-J. Schneider-Muntau and P. Rub, Coll. Int. Physique Sous Champes Magnetiquse Intenses (Grenoble, 1974), p. 161.
3. M. A. Date, J. Phys. Soc. Jpn. 39, 892 (1975).
4. L. J. Campbell, H. J. Boeing, and H.-J. Schneider-Muntau, Physica B 216, 218 (1996).
5. G. A. Shneerson, Zh. Tekh. Fiz. 56(1), 36 (1986) [Sov. Phys. Tech. Phys. 31, 20 (1986)].