%0 Journal Article %A Brown, Tom C. %T A Characterization of the Quadratic Irrationals %J Canadian mathematical bulletin %D 1991 %P 36-41 %V 34 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-006-4/ %R 10.4153/CMB-1991-006-4 %F 10_4153_CMB_1991_006_4