Unknown
Casner, A
;
Alozy, E
;
Brygoo, S
;
[et al.]
Casanova, M
;
Chauvel, L
;
Chevalier, J M
;
Chies, T
;
Combis, P
;
Courchignoux, R
;
Darbon, S
;
Debonnel, C
;
Depierreux, S
;
Duval, A
;
Esnault, C
;
Fuchs, J E
;
Graillot, H
;
... and further 24
Institute of Physics