1. R.S. Allgaier: Proc. SPIE, Vol. 285 (Society of Photo-Optical Instrumentation Engineers, Washington 1981) p. 2
2. G. Nimtz, B. Schlicht: In Narrow Gap Semiconductors,Springer Tracts Mod. Phys. 98, 1 (Springer, Berlin, Heidelberg, New York 1983)
3. I. Melngailis, T.C. Harman:Semiconductors and Semimetals 5, 111 (Academic Press, New York, London 1970)
4. H. Holloway: InPhysics of Thin Films, Vol. 11, ed. by G. Hass and M.H. Francombe (Academic Press, New York 1980) p. 105
5. J. Hesse, H. Preier: InFestk�rperprobleme, Vol. 15, ed. by H.J. Queisser (Pergamon Press, Vieweg, Braunschweig 1975) p. 229