000
00252nam a2200109 4500
008
160616s 000 0
245
_a
Close binary systems
100
_a
Kopal, Zdenek
500
_a
B962 J9
942
_c
BK
_2
BK10317
_0
1
080
_a
523.9 KOP
999
_c
10317
_d
10317