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Periodic solutions of systems with lag closely related to liapunov systems: PMM vol. 33, n≗3, 1969, pp. 403–412
A.F. Kleimenov, S.N. ShimanovVolume:
33
Year:
1969
Language:
english
Pages:
10
DOI:
10.1016/0021-8928(69)90055-0
File:
PDF, 622 KB
english, 1969