BibTeX

@ARTICLE{iumj10037,
    author = "Clive Chester and Joseph Keller",
     title = "Asymptotic Solution of Systems of Linear Ordinary Differential Equations with Discontinuous Coefficients",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 10,
      year = 1961,
     issue = 4,
     pages = "557--567",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj10037}{article}{
     author = {Chester, Clive},
     author = {Keller, Joseph},
      title = {Asymptotic Solution of Systems of Linear Ordinary Differential Equations with Discontinuous Coefficients},
    journal = {Indiana Univ. Math. J.},
     volume = {10},
       year = {1961},
     number = {4},
      pages = {557 \ndash 567},
}