%0 Journal Article
%A Stephen S.-T. Yau
%A Anatoly Libgober
%T An obstruction for smoothing of Gorenstein surface singularities.
%J Commentarii mathematici Helvetici
%D 1990
%P 413-433
%V 65
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140203/
%F CMH_1990__65_3_140203