@article{PismaZhETF.23.653,
    title = {Hamiltonian formalism in classical and two-fluid hydrodynamics},
    author = {Pokrovskii, V. L. and Khalatnikov, I. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {11},
    pages = {653},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27603.shtml},
}