@book{book47517766,
title   = {Topics on Hamiltonian systems},
author = {Oliva, Waldyr Muniz and Oliveira, José Carlos Fernandes de and Castilla, Maria Stella Amorim Coutinho},
year = {1988},
publisher = {Imecc-Unicamp},
booktitle   = {Summer School on Differential Equations and Dynamical Systems}
}