BibTeX

@ARTICLE{iumj5223,
    author = "Yuanyuan Bao",
     title = "On knots having zero negative unknotting number",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 63,
      year = 2014,
     issue = 2,
     pages = "597--613",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "57M27; 57M25;",
}

amsrefs

\bib{iumj5223}{article}{
     author = {Bao, Yuanyuan},
      title = {On knots having zero negative unknotting number},
    journal = {Indiana Univ. Math. J.},
     volume = {63},
       year = {2014},
     number = {2},
      pages = {597 \ndash 613},
}