Unknown
Marton, J
;
Bartalucci, S
;
Bertolucci, S
;
[et al.]
Berucci, C
;
Bragadireanu, M
;
Cargnelli, M
;
Curceanu, C
;
Clozza, A
;
Matteo, S Di
;
Egger, J-P
;
Guaraldo, C
;
Iliescu, M
;
Ishiwatari, T
;
Laubenstein, M
;
Milotti, E
;
Pichler, A
;
... and further 11
Institute of Physics