%0 Journal Article
%A Patrick Graf
%A Sándor J. Kovács
%T An optimal extension theorem for 1-forms and the Lipman–Zariski conjecture
%J Documenta mathematica
%D 2014
%P 815-830
%V 19
%U http://geodesic.mathdoc.fr/articles/10.4171/dm/465/
%R 10.4171/dm/465
%F 10_4171_dm_465