PRYKARPATSKY, Ya. A. Symplectic method for the construction of ergodic measures on invariant submanifolds of nonautonomous hamiltonian systems: Lagrangian manifolds, their structure, and mather homologies. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 5, p. 675–691, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3485. Acesso em: 5 dec. 2025.