%0 Journal Article
%A V. V. Shokurov
%T On~the closed cone of curves of algebraic 3-folds
%J Izvestiya. Mathematics 
%D 1985
%P 193-198
%V 24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1985_24_1_a7/
%G en
%F IM2_1985_24_1_a7