%0 Journal Article %A Ryotaro Sakamoto %T $p$-Selmer group and modular symbols %J Documenta mathematica %D 2022 %P 1891-1922 %V 27 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/x21/ %R 10.4171/dm/x21 %F 10_4171_dm_x21