Unknown
Shakura, N I
;
Kolesnikov, D A
;
Postnov, K A
;
[et al.]
Volkov, I M
;
Bikmaev, I F
;
Irsmambetova, T R
;
Staubert, R
;
Wilms, J
;
Irtuganov, E
;
Shurygin, P
;
Golysheva, P Yu
;
Shugarov, S Yu
;
Nikolenko, I V
;
Trunkovsky, E M
;
Schoenherr, G
;
Schwope, A
;
... and further 1
Institute of Physics