@article{JEMS_1999_1_1_a4,
     author = {Leonid Polterovich},
     title = {Hamiltonian loops from the ergodic point of view},
     journal = {Journal of the European Mathematical Society},
     pages = {87--107},
     year = {1999},
     volume = {1},
     number = {1},
     doi = {10.1007/pl00011161},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/pl00011161/}
}