000
00264nam a2200109 4500
008
160616s 000 0
245
_a
Frequency of self oscillations
100
_a
Groszkowski, Janusz
500
_a
C624 K1
942
_c
BK
_2
BK8762
080
_a
537.226 GRO
999
_c
8762
_d
8762