%0 Journal Article
%A A. V. Kazantsev
%T On a problem related to the extremum of the inner radius
%J Trudy seminara po kraevym zadačam
%D 1992
%P 47-62
%V 27
%N 27
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KUKZ_1992_27_27_a3/
%G ru
%F KUKZ_1992_27_27_a3