@article{SEMR_2023_20_2_a39,
     author = {A. Valyuzhenich},
     title = {On reduction for eigenfunctions of graphs},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {1290--1294},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2023_20_2_a39/}
}