References
- Guetin , P. and Schreder , G. 1972 . Phys. Rev. , B6 : 3816
- Voronovskii , A. N. , Dizhur , E. M. and Itskevich , E. S. 1979 . Sov Physics -JETP , 50 : 564
- Duke , C. B. 1969 . Sol. State Physics , 10 : 83
- Dizhur , E. M. , Voronovskii , A. N. , Itskevich , E. S. , Kotel'nikov , I. and Shul'man , A. 1992 . Sov, Physics -JETP , 75 To be published
- Wisniewski , P. Aug. 6–10 1990 . Abstracts of the 20th conference on the Physics of Semiconductors , Aug. 6–10 , 263 Greece : Thessaloniki .