共 50 条
- [7] PERIODIC-SOLUTIONS OF NONAUTONOMOUS HAMILTONIAN-SYSTEMS WITH SYMMETRIES [J]. JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK, 1994, 451 : 149 - 159
- [10] PERIODIC-SOLUTIONS OF HAMILTONIAN-SYSTEMS WITH SUPERQUADRATIC POTENTIAL [J]. ANNALI DI MATEMATICA PURA ED APPLICATA, 1986, 143 : 1 - 46