@article{AA_1989_1_6_a6,
     author = {S. R. Treil'},
     title = {Hankel operators, embedding theorems and bases of co-invariant subspaces of the multiple shift operator},
     journal = {Algebra i analiz},
     pages = {200--234},
     publisher = {mathdoc},
     volume = {1},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1989_1_6_a6/}
}