%0 Journal Article %A I. B. Zhukov %T On ramification theory in the~imperfect residue field case %J Sbornik. Mathematics %D 2003 %P 1747-1774 %V 194 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2003_194_12_a0/ %G en %F SM_2003_194_12_a0