@article{JCEM_2022_9_3_a3,
     author = {E. V. Kolmykova},
     title = {Operations on graph functions and spectral properties of compositions of reflections},
     journal = {Journal of computational and engineering mathematics},
     pages = {39--48},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JCEM_2022_9_3_a3/}
}