BibTeX

@ARTICLE{iumj40062,
    author = "Charles Pugh",
     title = "The Morse-Sard Theorem with Mixed Differentiability",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 40,
      year = 1991,
     issue = 4,
     pages = "1387--1396",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj40062}{article}{
     author = {Pugh, Charles},
      title = {The Morse-Sard Theorem with Mixed Differentiability},
    journal = {Indiana Univ. Math. J.},
     volume = {40},
       year = {1991},
     number = {4},
      pages = {1387 \ndash 1396},
}