BibTeX

@ARTICLE{iumj35043,
    author = "David Jerison and Antonio Sainchez-Calle",
     title = "Estimates for the Heat Kernel for a Sum of Squares of Vector Fields",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 35,
      year = 1986,
     issue = 4,
     pages = "835--854",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj35043}{article}{
     author = {Jerison, David},
     author = {Sainchez-Calle, Antonio},
      title = {Estimates for the Heat Kernel for a Sum of Squares of Vector Fields},
    journal = {Indiana Univ. Math. J.},
     volume = {35},
       year = {1986},
     number = {4},
      pages = {835 \ndash 854},
}