%0 Journal Article %A N. Filonov %T On the regularity of solutions to the equation $-\Delta u+b\cdot\nabla u=0$ %J Zapiski Nauchnykh Seminarov POMI %D 2013 %P 168-186 %V 410 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2013_410_a6/ %G en %F ZNSL_2013_410_a6