@article{FAA_1974_8_4_a1,
     author = {D. Z. Arov},
     title = {On unitary couplings with losses (scattering theory with losses)},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {5--22},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1974_8_4_a1/}
}