@article{10_4153_CJM_1991_063_4,
     author = {Vaughan, Theresa P.},
     title = {The {Normal} {Closure} of a {Quadratic} {Extension} of a {Cyclic} {Quartic} {Field}},
     journal = {Canadian journal of mathematics},
     pages = {1086--1097},
     year = {1991},
     volume = {43},
     number = {5},
     doi = {10.4153/CJM-1991-063-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1991-063-4/}
}