@article{DAN_1960_131_2_a2, author = {Yu. G. Borisovich}, title = {Rotation of weakly continuous vector fields}, journal = {Doklady Akademii Nauk}, pages = {230--233}, publisher = {mathdoc}, volume = {131}, number = {2}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_2_a2/} }