%0 Journal Article %A Guillaume Grisel %T Length of continued fractions in principal quadratic fields %J Acta Arithmetica %D 1998 %P 35-49 %V 85 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-85-1-35-49/ %R 10.4064/aa-85-1-35-49 %G en %F 10_4064_aa_85_1_35_49