BibTeX

@ARTICLE{iumj21040,
    author = "Joachim Nitsche",
     title = "The Regularity of Minimal Surfaces on the Movable Parts of Their Boundaries",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 21,
      year = 1972,
     issue = 6,
     pages = "505--513",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj21040}{article}{
     author = {Nitsche, Joachim},
      title = {The Regularity of Minimal Surfaces on the Movable Parts of Their Boundaries},
    journal = {Indiana Univ. Math. J.},
     volume = {21},
       year = {1972},
     number = {6},
      pages = {505 \ndash 513},
}