%0 Journal Article %A M. M. Malamud %T Estimates for systems of minimal and maximal differential operators in~$L_p(\Omega)$ %J Trudy Moskovskogo matematičeskogo obŝestva %D 1995 %P 206-261 %V 56 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1995_56_a6/ %G ru %F MMO_1995_56_a6