%0 Journal Article
%A V. I. Vasyunin
%A N. K. Nikol'skii
%T Classification of $H^2$-functions according to the degree of their cyclicity
%J Izvestiya. Mathematics 
%D 1984
%P 225-242
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1984_23_2_a1/
%G en
%F IM2_1984_23_2_a1