%0 Journal Article %A Takayuki Morisawa %T Mahler measure of the Horie unit and Weber's class number problem in the cyclotomic $\mathbb Z_{3}$-extension of $\mathbb Q$ %J Acta Arithmetica %D 2012 %P 35-49 %V 153 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa153-1-3/ %R 10.4064/aa153-1-3 %G en %F 10_4064_aa153_1_3