@article{TRSPY_1968_96_a17,
     author = {N. K. Nikol'skii},
     title = {Invariant subspaces of the shift operator and bounded approximation almost everywhere},
     journal = {Informatics and Automation},
     pages = {243--257},
     publisher = {mathdoc},
     volume = {96},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1968_96_a17/}
}