Lewis, DebraMarsden, Jerrold E.Montgomery, RichardRatiu, Tudor S.2008-11-202008-11-202008-11-20198610.1016/0167-2789(86)90207-1https://infoscience.epfl.ch/handle/20.500.14299/31415The Hamiltonian structure for dynamic free boundary problemstext::journal::journal article::research article