@incollection{AST_1978__51__429_0,
     author = {Stepin, A. M.},
     title = {Polynomial integrals of hamiltonian systems},
     booktitle = {Syst\`emes dynamiques III - Varsovie},
     series = {Ast\'erisque},
     pages = {cdxxix--cdxli},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {51},
     year = {1978},
     mrnumber = {488146},
     zbl = {0384.70027},
     language = {en},
     url = {http://www.numdam.org/item/AST_1978__51__429_0/}
}