BibTeX

@ARTICLE{iumj13004,
    author = "K. Das",
     title = "Singularity-Free Regions for Solutions of 2nd Order Non-Linear Differential Equations",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 13,
      year = 1964,
     issue = 1,
     pages = "73--84",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj13004}{article}{
     author = {Das, K.},
      title = {Singularity-Free Regions for Solutions of 2nd Order Non-Linear Differential Equations},
    journal = {Indiana Univ. Math. J.},
     volume = {13},
       year = {1964},
     number = {1},
      pages = {73 \ndash 84},
}