%0 Journal Article %A G. R. Belitskii %T Functional equations and conjugacy of local diffeomorphisms of a finite smoothness class %J Funkcionalʹnyj analiz i ego priloženiâ %D 1973 %P 17-28 %V 7 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1973_7_4_a1/ %G ru %F FAA_1973_7_4_a1