@article{TMF_2016_189_1_a1,
     author = {M. Bruschi and F. Calogero},
     title = {Some matrix functional equations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {15--35},
     publisher = {mathdoc},
     volume = {189},
     number = {1},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2016_189_1_a1/}
}