%0 Journal Article %A V. A. Shurygin %T Non-trivial constructive mappings of certain sets %J Doklady Akademii Nauk %D 1966 %P 40-42 %V 168 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_168_1_a8/ %G ru %F DAN_1966_168_1_a8