@article{FAA_1979_13_3_a4,
     author = {L. A. Sakhnovich},
     title = {Factorization of operators in $L^2(a,b)$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {40--45},
     year = {1979},
     volume = {13},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1979_13_3_a4/}
}