BibTeX

@ARTICLE{iumj5407,
    author = "Tirthankar Bhattacharyya",
     title = "The tetrablock as a spectral set",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 63,
      year = 2014,
     issue = 6,
     pages = "1601--1629",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "47A20; 47A25;",
}

amsrefs

\bib{iumj5407}{article}{
     author = {Bhattacharyya, Tirthankar},
      title = {The tetrablock as a spectral set},
    journal = {Indiana Univ. Math. J.},
     volume = {63},
       year = {2014},
     number = {6},
      pages = {1601 \ndash 1629},
}