%0 Journal Article %A Azizi, Abdelmalek %A Chems-Eddin, Mohamed Mahmoud %A Zekhnini, Abdelkader %T On some imaginary triquadratic number fields $k$ with ${\rm Cl}_2(k) \simeq (2, 4)$ or $(2, 2, 2)$ %J Commentationes Mathematicae Universitatis Carolinae %D 2021 %P 1-14 %V 62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2021.008/ %R 10.14712/1213-7243.2021.008 %G en %F 10_14712_1213_7243_2021_008