%0 Journal Article
%A G. A. Karpunin
%T Universal boundary sets in the generalized Steiner problem
%J Zapiski Nauchnykh Seminarov POMI
%D 2001
%P 168-182
%V 279
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_2001_279_a9/
%G ru
%F ZNSL_2001_279_a9