%0 Journal Article %A E. V. Kolmykova %T Operations on graph functions and spectral properties of compositions of reflections %J Journal of computational and engineering mathematics %D 2022 %P 39-48 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCEM_2022_9_3_a3/ %G en %F JCEM_2022_9_3_a3