%0 Journal Article %A Mitsuhiro, T. %A Nakahara, T. %T The Class Number Formula of a Real Quadratic Field and an Estimate of the Value of a Unit %J Canadian mathematical bulletin %D 1995 %P 98-103 %V 38 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1995-013-6/ %R 10.4153/CMB-1995-013-6 %F 10_4153_CMB_1995_013_6