BibTeX

@ARTICLE{iumj58058,
    author = "Samuel Karlin",
     title = "Positive Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 8,
      year = 1959,
     issue = 6,
     pages = "907--937",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj58058}{article}{
     author = {Karlin, Samuel},
      title = {Positive Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {8},
       year = {1959},
     number = {6},
      pages = {907 \ndash 937},
}