Proceedings of the 16th International Conference on Defects in Semiconductors : Lehigh University, Bethlehem, Pennsylvania, 22-26 July 1991. Pt.1 pp.15-20, 1992. Zurich, Switzerland. Trans Tech Publications
Shallow Impurities in Semiconductors : Proceedings of the Fifth International Conference on Shallow Impurities in Semiconductors "Physics and Control of Impurities", International Conference Center Kobe, Japan, 5 to 8 August, 1992. pp.147-152, 1993. Aedermannsdorf, Switzerland. Trans Tech Publications
Silicon carbide, III-nitrides and related materials, ICSCIII-N'97 : proceedings of the International Conference on Silicon Carbide, III-Nitrides and Related Materials, Stockholm, Sweden, September 1997. Part1 pp.541-544, 1998. Zuerich, Switzerland. Trans Tech Publications
Proceedings of the 18th International Conference on Defects in Semiconductors : ICDS-18, Sendai, Japan, July 23-28, 1995. pp.963-968, 1995. Zurich, Switzerland. Trans Tech Publications
Proceedings of the 16th International Conference on Defects in Semiconductors : Lehigh University, Bethlehem, Pennsylvania, 22-26 July 1991. Pt.2 pp.593-598, 1992. Zurich, Switzerland. Trans Tech Publications