Halide glasses : proceedings of the Fourth International Symposium on Halide Glasses, held in Monterey, California, U.S.A., 26-29 January 1987. Pt.2 pp.327-342, 1987. Aedermannsdorf, Switzerland. Trans Tech Publications
Halide glasses V : proceedings of the 5th International Symposium on Halide Glasses, held at Fuji Institute, Japan, May 29/June 2, 1988. pp.261-266, 1988. Switzerland. Trans Tech Publications
Halide glasses V : proceedings of the 5th International Symposium on Halide Glasses, held at Fuji Institute, Japan, May 29/June 2, 1988. pp.243-254, 1988. Switzerland. Trans Tech Publications