Electronic Resource
Simmler, H.
;
Eschle, P.
;
Keller, H.
;
[et al.]
Kundig, W.
;
Odermatt, W.
;
Patterson, B.D.
;
Savic, I.M.
;
Schneider, J.W.
;
Stauble-Pumpin, B.
;
Truol, P.
;
Straumann, U.
Amsterdam
:
Elsevier
Nuclear Inst. and Methods in Physics Research, B
63 (1992), S. 125-129