Electronic Resource
Marwick, A.D.
;
Civale, L.
;
Krusin-Elbaum, L.
;
[et al.]
Wheeler, R.
;
Thompson, J.R.
;
Worthington, T.K.
;
Kirk, M.A.
;
Sun, Y.R.
;
Holtzberg, F.
;
Kerchner, H.R.
Amsterdam
:
Elsevier
Nuclear Inst. and Methods in Physics Research, B
80-81 (1993), S. 1143-1149