@Misc{ MonMonPer21, author = { Mondello, Ilaria and Mondino, Andrea and Perales, Raquel }, title = { An upper bound on the revised first Betti number and a torus stability result for RCD spaces }, journal = { Commentarii Mathematici Helvetici }, year = { 2021 }, pages = { }, URL = { http://cvgmt.sns.it/paper/5084/ }, note = { cvgmt preprint} }