1. Raman scattering;Feile;Physica C,1989
2. IR spectroscopy;Thomsen,1991
3. IR spectroscopy;Basov,1999
4. Generating coherent THz phonons with light pulses
5. T. Dekorsy, G.C. Cho, H.Kurz, in: M. Cardona, G. Guenterodt (Eds.), Light Scattering in Solids VII, Springer, Berlin, to be published.