@article{DM_2001_13_4_a8, author = {V. A. Kolmykov}, title = {On summation over paths in spectral graph theory}, journal = {Diskretnaya Matematika}, pages = {122--125}, publisher = {mathdoc}, volume = {13}, number = {4}, year = {2001}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DM_2001_13_4_a8/} }