000
00291nam a2200109 4500
008
160616s 000 0
245
_a
Applied methods in the theory of nonlinear oscillations
100
_a
Starzhinskii, V.M
500
_a
B33,11 M0
942
_c
BK
_2
BK4451
080
_a
517.927.4 STA
999
_c
4451
_d
4451