%0 Journal Article %A O. V. Besov %T Investigation of a class of function spaces in connection with imbedding and extension theorems %J Informatics and Automation %D 1961 %P 42-81 %V 60 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1961_60_a3/ %G ru %F TRSPY_1961_60_a3