BibTeX

@ARTICLE{iumj7545,
    author = "David Constantine",
     title = "Marked length spectrum rigidity in nonpositive curvature with singularities",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 67,
      year = 2018,
     issue = 6,
     pages = "2337--2361",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj7545}{article}{
     author = {Constantine, David},
      title = {Marked length spectrum rigidity in nonpositive curvature with singularities},
    journal = {Indiana Univ. Math. J.},
     volume = {67},
       year = {2018},
     number = {6},
      pages = {2337 \ndash 2361},
}