%0 Journal Article %A Radan Kučera %T Different groups of circular units of a compositum of real quadratic fields %J Acta Arithmetica %D 1994 %P 123-140 %V 67 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-67-2-123-140/ %R 10.4064/aa-67-2-123-140 %G en %F 10_4064_aa_67_2_123_140