%0 Journal Article %A M. A. Lapik %T Equilibrium measure for the vector logarithmic potential problem with an external field and the Nikishin interaction matrix %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2012 %P 579-581 %V 67 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2012_67_3_a6/ %G en %F RM_2012_67_3_a6