@article{ZNSL_1992_201_a2,
     author = {V. V. Kapustin},
     title = {Almost isometric operators: a function model, invariant subspaces, the~commutant},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {95--116},
     publisher = {mathdoc},
     volume = {201},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1992_201_a2/}
}