BibTeX

@ARTICLE{iumj26073,
    author = "Le Chu",
     title = "Duality and Perturbations of \Phi_+ and \Phi_-Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 26,
      year = 1977,
     issue = 5,
     pages = "905--914",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj26073}{article}{
     author = {Chu, Le},
      title = {Duality and Perturbations of \Phi_+ and \Phi_-Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {26},
       year = {1977},
     number = {5},
      pages = {905 \ndash 914},
}