%0 Journal Article %A M. I. Ostrovskii %T Isometric classification of Sobolev spaces on graphs %J Colloquium Mathematicum %D 2007 %P 287-295 %V 109 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm109-2-10/ %R 10.4064/cm109-2-10 %G en %F 10_4064_cm109_2_10