Unknown
Allaria, E
;
Battistoni, A
;
Bencivenga, F
;
[et al.]
Borghes, R
;
Callegari, C
;
Capotondi, F
;
Castronovo, D
;
Cinquegrana, P
;
Cocco, D
;
Coreno, M
;
Craievich, P
;
Cucini, R
;
D'Amico, F
;
Danailov, M B
;
Demidovich, A
;
De Ninno, G
;
... and further 31
Institute of Physics