@article{AA_2005_17_3_a8,
     author = {V. V. Peller and S. R. Treil},
     title = {Approximation by analytic operator functions. {Factorizations} and very badly approximable functions},
     journal = {Algebra i analiz},
     pages = {160--183},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2005_17_3_a8/}
}