%0 Journal Article %A L. O. Chekhov %T Logarithmic potential $\beta$-ensembles and Feynman graphs %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2011 %P 65-83 %V 272 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2011_272_a6/ %G ru %F TM_2011_272_a6