BibTeX

@ARTICLE{iumj19063,
    author = "Hans Triebel",
     title = "Uber die Verteilung der Approximationszahlen von Integraloperatoren in Sobolev-Besov-Raumen",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 19,
      year = 1970,
     issue = 9,
     pages = "783--796",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj19063}{article}{
     author = {Triebel, Hans},
      title = {Uber die Verteilung der Approximationszahlen von Integraloperatoren in Sobolev-Besov-Raumen},
    journal = {Indiana Univ. Math. J.},
     volume = {19},
       year = {1970},
     number = {9},
      pages = {783 \ndash 796},
}