1. R.K. Willardson, A.C. Beer:Semiconductors and Semimetals, Vol. 5 (Academic, New York 1970)
2. C.E. Hurtz: Appl. Phys. Lett.8, 121 (1966)
3. S.V. Svechnikov, E.B. Kaganovich: Thin Solid Films66, 41 (1980)
4. B. Ray: InII?VI Compounds (Pergamon, London 1969). p. 172
5. N.I. Vitrikhovskii, I.B. Mizetskaya: Sov. Phys.-Solid State1, 358 (1959)