%0 Journal Article %A V. V. Ishkhanov %A B. B. Lur'e %T On the embedding problem with non-Abelian kernel of order~$p^4$.~IV %J Zapiski Nauchnykh Seminarov POMI %D 1994 %P 120-126 %V 211 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1994_211_a7/ %G ru %F ZNSL_1994_211_a7