%0 Journal Article %A S. V. Kislyakov %T Extension of operators defined on reflexive subspaces of~$L^1$ and $L^1/H^1$ %J Zapiski Nauchnykh Seminarov POMI %D 2000 %P 103-123 %V 270 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2000_270_a5/ %G ru %F ZNSL_2000_270_a5