BibTeX

@ARTICLE{iumj7626,
    author = "Ja Kyung Koo and Dong Sung Yoon",
     title = "Construction of class fields over imaginary biquadratic fields",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 68,
      year = 2019,
     issue = 2,
     pages = "413--434",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj7626}{article}{
     author = {Koo, Ja Kyung},
     author = {Yoon, Dong Sung},
      title = {Construction of class fields over imaginary biquadratic fields},
    journal = {Indiana Univ. Math. J.},
     volume = {68},
       year = {2019},
     number = {2},
      pages = {413 \ndash 434},
}