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
EPDIC 1 : proceedings of the First European Powder Diffraction Conference held, March 14th - 16th, 1991. in Munich, Germany. Pt.1 pp.419-426, 1991. Aedermannsdorf, 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
Positron annihilation : Proceedings of the 9th International Conference on Positron Annihilation, August 26-31, 1991, Szombathely, Hungary. Pt.1 pp.599-602, 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.485-487, 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.1981-1984, 1992. Aederlmannsdorf, 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-10 : Proceedings of the 10th International Conference on Positron Annihilation, May 23-29, 1994, Beijing, China. Part2 pp.879-882, 1995. Aederlmannsdorf, 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