%0 Journal Article %A V. A. Iskovskikh %A V. V. Shokurov %T Preface %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2003 %P 5-7 %V 240 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2003_240_a0/ %G ru %F TM_2003_240_a0