%0 Journal Article %A V. A. Kolmykov %T On summation over paths in spectral graph theory %J Diskretnaya Matematika %D 2001 %P 122-125 %V 13 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_2001_13_4_a8/ %G ru %F DM_2001_13_4_a8