Periodic solutions to nonlinear nonautonomous system of differential equations
Crossref DOI link: https://doi.org/10.3103/S1066369X17050103
Published Online: 2017-04-29
Published Print: 2017-05
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Teryokhin, M. T.
Baeva, O. V.
License valid from 2017-04-29