Unknown
Förster, A
;
Collaboration, the NA60
;
Arnaldi, R
;
[et al.]
Averbeck, R
;
Banicz, K
;
Castor, J
;
Chaurand, B
;
Cicalò, C
;
Colla, A
;
Cortese, P
;
Damjanovic, S
;
David, A
;
Falco, A De
;
Devaux, A
;
Drees, A
;
Ducroux, L
;
... and further 35
Institute of Physics