000
00267nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Utkin N
245
0
_a
Measurements in television channels
260
_b
MIR
260
_c
1974
365
_b
6.4
942
_c
BK
999
_c
200359
_d
200359