Unknown
Bhatnagar, V.P
;
Lingertat, J
;
Barnsley, R
;
[et al.]
Breger, P
;
Christiansen, J.P
;
Clement, S
;
Cordey, J.G
;
Davies, S.J
;
Ehrenberg, J.K
;
Eriksson, L.-G
;
Fishpool, G.M
;
Harbour, P.J
;
Horton, L.D
;
Jacquinot, J
;
Jäckel, H.J
;
Lawson, K
;
... and further 14
Institute of Physics