%0 Journal Article
%A V. N. Karpushkin
%T Bounds for the Betti numbers of a level surface of a harmonic polynomial
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1992
%P 86-88
%V 26
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1992_26_4_a13/
%G ru
%F FAA_1992_26_4_a13