%0 Journal Article
%A I. L. Vasiliev
%A A. V. Ushakov
%T Lagrangian relaxations for the nonlinear $p$-median problem
%J The Bulletin of Irkutsk State University. Series Mathematics
%D 2011
%P 45-59
%V 4
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IIGUM_2011_4_2_a3/
%G ru
%F IIGUM_2011_4_2_a3