%0 Journal Article %A V. I. Gracheva %T On the question of $K_{af}$-linearizing straight lines and planes of differentiable mappings of Euclidean spaces %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1978 %P 19-31 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1978_5_a2/ %G ru %F IVM_1978_5_a2