BibTeX

@ARTICLE{iumj18062,
    author = "Masako Izumi and Shin-Ichi Izumi",
     title = "Lipschitz Classes and Fourier Coefficients",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 18,
      year = 1969,
     issue = 9,
     pages = "857--870",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj18062}{article}{
     author = {Izumi, Masako},
     author = {Izumi, Shin-Ichi},
      title = {Lipschitz Classes and Fourier Coefficients},
    journal = {Indiana Univ. Math. J.},
     volume = {18},
       year = {1969},
     number = {9},
      pages = {857 \ndash 870},
}