@article{MZM_2006_79_3_a3,
     author = {B. V. Vinnitskii and V. N. Dil'nyi},
     title = {A~generalization of the {Beurling--Lax} theorem},
     journal = {Matemati\v{c}eskie zametki},
     pages = {362--368},
     publisher = {mathdoc},
     volume = {79},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2006_79_3_a3/}
}