BibTeX

@ARTICLE{iumj4296,
    author = "Antonio Costa and Sabir Gusein-Zade and Sergey Natanzon",
     title = "Klein foams",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 60,
      year = 2011,
     issue = 3,
     pages = "985--996",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "14H15; 30F10; 32G15;",
}

amsrefs

\bib{iumj4296}{article}{
     author = {Costa, Antonio},
     author = {Gusein-Zade, Sabir},
     author = {Natanzon, Sergey},
      title = {Klein foams},
    journal = {Indiana Univ. Math. J.},
     volume = {60},
       year = {2011},
     number = {3},
      pages = {985 \ndash 996},
}