Positron annihilation : Proceedings of the 9th International Conference on Positron Annihilation, August 26-31, 1991, Szombathely, Hungary. Pt.3 pp.1459-1462, 1992. Aederlmannsdorf, 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. Part2 pp.745-748, 1998. Zuerich, 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.217-220, 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.701-703, 1997. Zuerich, Switzerland. Trans Tech Publications
Positron annihilation, ICPA-11 : Proceedings of the 11th International Conference on Positron Annihilation, Kansas City, Missouri, USA, May 1997. pp.114-118, 1997. Zuerich, Switzerland. Trans Tech Publications
Positron annihilation : Proceedings of the 9th International Conference on Positron Annihilation, August 26-31, 1991, Szombathely, Hungary. Pt.3 pp.1993-1996, 1992. 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.769-771, 1997. Zuerich, Switzerland. Trans Tech Publications
Positron annihilation, ICPA-11 : Proceedings of the 11th International Conference on Positron Annihilation, Kansas City, Missouri, USA, May 1997. pp.714-717, 1997. Zuerich, Switzerland. Trans Tech Publications