@article{10_4064_cm109_2_10,
     author = {M. I. Ostrovskii},
     title = {Isometric classification of {Sobolev} spaces on graphs},
     journal = {Colloquium Mathematicum},
     pages = {287--295},
     publisher = {mathdoc},
     volume = {109},
     number = {2},
     year = {2007},
     doi = {10.4064/cm109-2-10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm109-2-10/}
}