@article{FAA_1987_21_4_a18,
     author = {A. P. Filimonov and \`E. R. Tsekanovskii},
     title = {Automorphic-invariant operator colligations and the factorization of their characteristic operator functions},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {94--95},
     publisher = {mathdoc},
     volume = {21},
     number = {4},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1987_21_4_a18/}
}