16=7,1; 17=8,1; 19=10,1; 20=11,1; 21=12,1; 22=13,1; 23=14,1; 24=15,2; 25=16,2; 26=17,1; 27=18,2-3; 28=20,3-4 von: Journal of vacuum science & technology (ISSN: 0022-5355)
29=1,2; 30=2,2; 31=3,3; 32=4,3; 33=5,4; 34=6,3; 35=7,3; 36=8,3; 37=9,3; 38=10,4; 39=11,4 von: [Journal of vacuum science and technology / A] (ISSN: 0734-2101)
33=10 von: International Vacuum Congress: Proceedings of the ... International Vacuum Congress
33=6 von: International Conference on Solid Surfaces: Proceedings of the ... International Conference on Solid Surfaces