000
00320nam a2200121 4500
008
160616s 000 0
245
_a
Numerical analytic methods of investigating periodic solutions
100
_a
Samoilenko, A.M
100
_a
Ronto, N.I
500
_a
B33,11 L6
942
_c
BK
_2
BK4448
080
_a
517.91 SAM
999
_c
4448
_d
4448