共 15 条
- [1] Andres J., 2003, ABSTR APPL MATH, V9, P547
- [2] Andres J, 2007, DYNAM SYST APPL, V16, P37
- [3] Erbe L. H., 1987, LECT NOTES PURE APPL, V109, P179
- [5] Gaines R. E., 1977, LECT NOTES MATH, P586
- [6] Hartman P., 1969, ORDINARY DIFFERENTIA
- [7] LLOYD N.G., 1978, DEGREE THEORY, V73
- [9] Mawhin J, 2002, DISCRETE CONT DYN S, V8, P39
- [10] Mawhin J., 1981, QUALITATIVE THEORY D, V30, P709