%0 Journal Article %A M. A. Shtan'ko %T Some unsolved problems of the topology of manifolds of small dimension %J Doklady Akademii Nauk %D 1978 %P 294-297 %V 242 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_242_2_a8/ %G ru %F DAN_1978_242_2_a8