%0 Journal Article %A Vaughan, Theresa P. %T The Normal Closure of a Quadratic Extension of a Cyclic Quartic Field %J Canadian journal of mathematics %D 1991 %P 1086-1097 %V 43 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1991-063-4/ %R 10.4153/CJM-1991-063-4 %F 10_4153_CJM_1991_063_4