Unknown
Dzhanbusinova, M
;
Ermilova, D I
;
Filippova, V V
;
[et al.]
Batyunya, B V
;
Boguslavsky, I V
;
Gramenitsky, I M
;
Lednicky, R
;
Tikhonova, L A
;
Topuriya, T
;
Valkàrovà, A
;
Vrba, V
;
Zàcek, J
;
Zlatanov, Z
;
Ervanne, J
;
Hannula, E
;
Ljung, S
;
... and further 12
Institute of Physics