@article{RM_2012_67_3_a6,
     author = {M. A. Lapik},
     title = {Equilibrium measure for the vector logarithmic potential problem with an external field and the {Nikishin} interaction matrix},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {579--581},
     publisher = {mathdoc},
     volume = {67},
     number = {3},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2012_67_3_a6/}
}