Proceedings of the 16th International Conference on Defects in Semiconductors : Lehigh University, Bethlehem, Pennsylvania, 22-26 July 1991. Pt.2 pp.563-568, 1992. Zurich, Switzerland. Trans Tech Publications
Defects in semiconductors, icds-19 : proceedings of the 19th International Conference on Defects in Semiconductors, Aveiro, Portugal, July 1997. Part2 pp.911-916, 1997. Zurich, Switzerland. Trans Tech Publications