%0 Journal Article %A V. I. Gunar %A S. I. Zav'yalov %T On the structural orientation in the reaction of diketene with monosubstituted ureas %J Doklady Akademii Nauk %D 1964 %P 1358-1361 %V 158 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_158_6_a24/ %G ru %F DAN_1964_158_6_a24