@article{FAA_1991_25_4_a9,
     author = {Yu. N. Bespalov and Yu. S. Samoilenko},
     title = {Algebraic operators and pairs of self-adjoint operators connected by a polynomial relation},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {72--74},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1991_25_4_a9/}
}