BibTeX

@ARTICLE{iumj15004,
    author = "Leonard Berkovitz and Stuart Dreyfus",
     title = "A Dynamic Programming Approach to the Nonparametric Problem in the Calculus of Variations",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 15,
      year = 1966,
     issue = 1,
     pages = "83--100",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj15004}{article}{
     author = {Berkovitz, Leonard},
     author = {Dreyfus, Stuart},
      title = {A Dynamic Programming Approach to the Nonparametric Problem in the Calculus of Variations},
    journal = {Indiana Univ. Math. J.},
     volume = {15},
       year = {1966},
     number = {1},
      pages = {83 \ndash 100},
}