%0 Journal Article %A P. I. Katsylo %T Birational geometry of moduli varieties of vector bundles over $\mathbf P^2$ %J Izvestiya. Mathematics %D 1992 %P 419-428 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1992_38_2_a9/ %G en %F IM2_1992_38_2_a9