BibTeX

@ARTICLE{iumj21009,
    author = "Garrett Birkhoff and Arthur Priver",
     title = "Optimal Smoothing of Gaussian Periodic Data",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 21,
      year = 1972,
     issue = 2,
     pages = "103--113",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj21009}{article}{
     author = {Birkhoff, Garrett},
     author = {Priver, Arthur},
      title = {Optimal Smoothing of Gaussian Periodic Data},
    journal = {Indiana Univ. Math. J.},
     volume = {21},
       year = {1972},
     number = {2},
      pages = {103 \ndash 113},
}