%0 Journal Article %A V. A. Kolmykov %T On the characteristic polynomials of periodic graphs %J Diskretnaya Matematika %D 2004 %P 153-159 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_2004_16_3_a8/ %G ru %F DM_2004_16_3_a8