Publisher
Springer Berlin Heidelberg
Reference20 articles.
1. G. Bauer, E. Seitz, H. Homer and W. Schmatz, Sol. St. Comm. 17, 161 (1975)
2. H. Metzger and H. Peisl, J. Phys. F: Met. Phys. 8, 391 (1978)
3. V. Lottner, H.R. Schober and W.J. Fitzgerald, Phys. Rev. Lett. 42, 1162 (1979)
4. E.G. Brovman and Yu. Kagan in Dynamical Properties of Solids, vol. 1, ed. G.K. Horton and A.A. Maradudin (North-Holland, Amsterdam 1974)
5. Z.D. Popovic and M.J. Stott, Phys. Rev. Lett. 33, 1164 (1974)