Llibre, Jaume.
Separatrix surfaces and invariant manifolds of a class of integrable Hamiltonian systems and their perturbations - Providence, R.I. : American Mathematical Society, 1994 - 1 online resource (vii, 191 p. : ill.) - Memoirs of the American Mathematical Society, 1947-6221 ; .
9781470400903 (online)
Separatrix surfaces and invariant manifolds of a class of integrable Hamiltonian systems and their perturbations - Providence, R.I. : American Mathematical Society, 1994 - 1 online resource (vii, 191 p. : ill.) - Memoirs of the American Mathematical Society, 1947-6221 ; .
9781470400903 (online)