Boscaggin A, Fonda A, Garrione M. An infinite-dimensional version of the Poincaré-Birkhoff theorem on the Hilbert cube . Annali Scienze [Internet]. 2020May19 [cited 2025Jun.7];20(2):751-70. Available from: http://20.103.181.36/index.php/annaliscienze/article/view/693