%0 Journal Article
%A Steven Cutkosky
%T Elementary Contractions of Gorenstein Threefolds.
%J Mathematische Annalen
%D 1988
%P 521-526
%V 280
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1988__280_3_164380/
%F MAN_1988__280_3_164380