%0 Journal Article %A Yu. G. Borisovich %T Rotation of weakly continuous vector fields %J Doklady Akademii Nauk %D 1960 %P 230-233 %V 131 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_131_2_a2/ %G ru %F DAN_1960_131_2_a2