共 21 条
[1]
Arnold V.I., 1964, SOV MATH DOKL, V5, P581
[3]
DECARVALHO S, 1983, LECT NOTES MATH, V1007, P88
[5]
Gavrilov N.K., 1972, MATH USSR SB, V17, P467, DOI DOI 10.1070/SM1972V017N04ABEH001597
[6]
Gavrilov N. K., 1973, MATH USSR SBORNIK, V254, P139
[8]
Guckenheimer J., 2013, NONLINEAR OSCILLATIO, V42