Electronic Resource
Howell, C.R.
;
Tornow, W.
;
Pfutzner, H.G.
;
[et al.]
Roberts, M.L.
;
Murphy, K.
;
Felsher, P.D.
;
Weisel, G.J.
;
Mertens, G.
;
Slaus, I.
;
Lambert, J.M.
;
Treado, P.A.
;
Walter, R.L.
Amsterdam
:
Elsevier
Nuclear Inst. and Methods in Physics Research, B
56-57 (1991), S. 459-463