BibTeX

@ARTICLE{iumj3492,
    author = "Ahmad El Soufi",
     title = "Isoperimetric inequalities for the eigenvalues of natural Schroedinger operators on surfaces",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 58,
      year = 2009,
     issue = 1,
     pages = "335--350",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "35P15; 58J50; 35J10;",
}

amsrefs

\bib{iumj3492}{article}{
     author = {El Soufi, Ahmad},
      title = {Isoperimetric inequalities for the eigenvalues of natural Schroedinger operators on surfaces},
    journal = {Indiana Univ. Math. J.},
     volume = {58},
       year = {2009},
     number = {1},
      pages = {335 \ndash 350},
}