BibTeX

@ARTICLE{iumj3075,
    author = "V. Peller and V. Vasyunin",
     title = "Analytic approximation of rational matrix functions",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 56,
      year = 2007,
     issue = 4,
     pages = "1913--1937",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "47B35;",
}

amsrefs

\bib{iumj3075}{article}{
     author = {Peller, V.},
     author = {Vasyunin, V.},
      title = {Analytic approximation of rational matrix functions},
    journal = {Indiana Univ. Math. J.},
     volume = {56},
       year = {2007},
     number = {4},
      pages = {1913 \ndash 1937},
}