%0 Journal Article %A V. V. Filippov %T Optimal Solution Space and Regularization of Equations with Discontinuities in the Space Variables %J Matematičeskie zametki %D 2001 %P 458-467 %V 70 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2001_70_3_a12/ %G ru %F MZM_2001_70_3_a12