%0 Journal Article %A Tsuyoshi Itoh %T On the Stark–Shintani units and the ideal class groups in the cyclotomic ${\Bbb Z}_p$-extensions of class fields over real quadratic fields %J Acta Arithmetica %D 2002 %P 21-26 %V 102 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa102-1-2/ %R 10.4064/aa102-1-2 %G en %F 10_4064_aa102_1_2