Positron annihilation, ICPA-11 : Proceedings of the 11th International Conference on Positron Annihilation, Kansas City, Missouri, USA, May 1997. pp.233-237, 1997. Zuerich, Switzerland. Trans Tech Publications
Positron annihilation : ICPA-10 : Proceedings of the 10th International Conference on Positron Annihilation, May 23-29, 1994, Beijing, China. Part2 pp.939-946, 1995. Aederlmannsdorf, Switzerland. Trans Tech Publications
Positron annihilation : ICPA-10 : Proceedings of the 10th International Conference on Positron Annihilation, May 23-29, 1994, Beijing, China. Part2 pp.929-932, 1995. Aederlmannsdorf, Switzerland. Trans Tech Publications
Defects in semiconductors, icds-19 : proceedings of the 19th International Conference on Defects in Semiconductors, Aveiro, Portugal, July 1997. Part1 pp.97-102, 1997. Zurich, Switzerland. Trans Tech Publications
Positron annihilation : ICPA-10 : Proceedings of the 10th International Conference on Positron Annihilation, May 23-29, 1994, Beijing, China. Part1 pp.71-76, 1995. Aederlmannsdorf, Switzerland. Trans Tech Publications
Positron annihilation, ICPA-11 : Proceedings of the 11th International Conference on Positron Annihilation, Kansas City, Missouri, USA, May 1997. pp.194-198, 1997. Zuerich, Switzerland. Trans Tech Publications
Positron annihilation : Proceedings of the 9th International Conference on Positron Annihilation, August 26-31, 1991, Szombathely, Hungary. Pt.1 pp.647-650, 1992. Aederlmannsdorf, Switzerland. Trans Tech Publications
Proceedings of the 18th International Conference on Defects in Semiconductors : ICDS-18, Sendai, Japan, July 23-28, 1995. pp.933-938, 1995. Zurich, Switzerland. Trans Tech Publications