BibTeX

@ARTICLE{iumj26055,
    author = "Phillip Schmidt",
     title = "The Extended Variational Method Applied to the Bifurcation of Solutions to Nonlinear Problems",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 26,
      year = 1977,
     issue = 4,
     pages = "691--706",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj26055}{article}{
     author = {Schmidt, Phillip},
      title = {The Extended Variational Method Applied to the Bifurcation of Solutions to Nonlinear Problems},
    journal = {Indiana Univ. Math. J.},
     volume = {26},
       year = {1977},
     number = {4},
      pages = {691 \ndash 706},
}