Rare earth doped semiconductors II : symposium held April 8-10, 1996, San Francisco, California, U.S.A.. pp.179-, 1996. Pittsburgh. MRS - Materials Research Society
Rare earth doped semiconductors : symposium held April 13-15, 1993, San Francisco, California, U.S.A.. pp.139-, 1993. Pittsburgh, Pa.. MRS - Materials Research Society
Defects in electronic materials II : symposium held December 2-6, 1996, Boston, Massachusetts, U.S.A.. pp.529-, 1997. Pittsburgh, Penn. MRS - Materials Research Society