%0 Journal Article %A Jonathan Sands %T Generalization of a theorem of Siegel %J Acta Arithmetica %D 1991 %P 47-57 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-58-1-47-57/ %R 10.4064/aa-58-1-47-57 %G en %F 10_4064_aa_58_1_47_57