@article{10_4153_CMB_2001_012_6,
     author = {Ou, Zhiming M. and Williams, Kenneth S.},
     title = {On the {Density} of {Cyclic} {Quartic} {Fields}},
     journal = {Canadian mathematical bulletin},
     pages = {97--104},
     year = {2001},
     volume = {44},
     number = {1},
     doi = {10.4153/CMB-2001-012-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2001-012-6/}
}