@article{SEMR_2015_12_a57,
     author = {S. V. Avgustinovich and E. V. Gorkunov and Yu. D. Syomina},
     title = {On antipodal properties for eigenfunctions of graphs},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {862--867},
     publisher = {mathdoc},
     volume = {12},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2015_12_a57/}
}