%0 Journal Article %A L. O. Chekhov %A N. V. Puzyrnikova %T Integrable systems on graphs %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2000 %P 992-994 %V 55 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2000_55_5_a5/ %G en %F RM_2000_55_5_a5