TY - JOUR TI - Bifurcations of periodic trajectories in non-integrable hamiltonian systems with two degrees of freedom: numerical and analytical results PY - 1987 AU - Aguiar, M A M AU - Malta, Coraci Pereira AU - Baranger, M AU - Davies, K T R T2 - Annals of Physics DO - 10.1016/0003-4916(87)90044-3 UR - https://doi.org/10.1016/0003-4916(87)90044-3 VL - 180 IS - 2 SP - 167-205 ER -