%0 Journal Article
%A V. N. Dubinin
%A E. V. Kostyuchenko
%T Extremal problems in the function theory associated with the $n$-fold symmetry
%J Zapiski Nauchnykh Seminarov POMI
%D 2001
%P 83-111
%V 276
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_2001_276_a4/
%G ru
%F ZNSL_2001_276_a4