Electronic Resource
Giger, W.
;
Sturm, M.
;
Sturm, H.
;
[et al.]
Schaffner, C.
;
Bonani, G.
;
Balzer, R.
;
Hofmann, H.J.
;
Morenzoni, E.
;
Nessi, M.
;
Suter, M.
;
Wolfli, W.
Amsterdam
:
Elsevier
Nuclear Inst. and Methods in Physics Research, B
5 (1984), S. 394-397