共 6 条
- [1] CARR J, 1981, APPLIECATIONS CTR MA, V35
- [2] Guckenheimer J, 1983, NONLINEAR OSCILLATIO, V42
- [3] Marsden J.E., 1976, HOPF BIFURCATION ITS, V19
- [4] Rand R., 1984, RES NOTES MATH, V94
- [5] RAND RH, 1987, PERTURBATION METHODS, V65
- [6] Stoker J.J., 1950, NONLINEAR VIBRATIONS, V2