%0 Journal Article %A Jiayin Pan %T The Fundamental Groups of Open Manifolds with Nonnegative Ricci Curvature %J Symmetry, integrability and geometry: methods and applications %D 2020 %V 16 %U http://geodesic.mathdoc.fr/item/SIGMA_2020_16_a77/ %G en %F SIGMA_2020_16_a77