BibTeX

@ARTICLE{iumj17047,
    author = "R. Duffin",
     title = "Optimum Heat Transfer and Network Programming",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 17,
      year = 1968,
     issue = 8,
     pages = "759--768",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj17047}{article}{
     author = {Duffin, R.},
      title = {Optimum Heat Transfer and Network Programming},
    journal = {Indiana Univ. Math. J.},
     volume = {17},
       year = {1968},
     number = {8},
      pages = {759 \ndash 768},
}