%0 Journal Article %A Johnson, Norman W. %A Weiss, Asia Ivić %T Quadratic Integers and Coxeter Groups %J Canadian journal of mathematics %D 1999 %P 1307-1336 %V 51 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1999-060-6/ %R 10.4153/CJM-1999-060-6 %F 10_4153_CJM_1999_060_6