%0 Journal Article %A V. V. Ishkhanov %T An embedding problem with a~nonabelian kernel of order $p^4$ %J Informatics and Automation %D 1990 %P 116-121 %V 183 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1990_183_a13/ %G ru %F TRSPY_1990_183_a13