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3. 3. A. Azizi and M. Taous, Determination des corps k = Q(vd,v-1) dont les 2-groupes de classes sont de type (2, 4) ou (2, 2, 2), Rend. Istit. Mat. Univ. Trieste. 40 (2008), 93-116, Zbl 1215.11107, MR2583453.
4. On the generators of the 2-class group of the field k = Q(vd, i);Azizi;IJPAM,2012
5. 5. A. Azizi, A. Zekhnini and M. Taous, On the strongly ambiguous classes of k/Q(i) where k = Q(v2p1p2, i), Asian-Eur. J. Math. 7 (2014), no. 1, Zbl 1292.11119, MR3189588.