000
00305nam a2200133Ia 4500
008
210901s1980 xx 000 0 eng d
082
_a
621.38132 FRO
100
_a
Frolkin, V.T.
245
0
_a
Pulse circuits
260
_a
Moscow
_b
MIR
_c
1980
300
_a
390
650
_a
Engineering
942
_2
ddc
_c
BK
999
_c
16743
_d
16743