%0 Journal Article
%A N. K. Nikol'skii
%T Five problems about invariant subspaces
%J Zapiski Nauchnykh Seminarov POMI
%D 1971
%P 115-127
%V 23
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1971_23_a10/
%G ru
%F ZNSL_1971_23_a10