%0 Journal Article %A V. G. Boltyanskii %T Homotopy theory of continuous mappings and of vector fields %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1955 %P 3-199 %V 47 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1955_47_a0/ %G ru %F TM_1955_47_a0