%0 Journal Article %A Peter Thurnheer %T On Dirichlet's theorem concerning diophantine approximation %J Acta Arithmetica %D 1989 %P 241-250 %V 54 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-54-3-241-250/ %R 10.4064/aa-54-3-241-250 %G en %F 10_4064_aa_54_3_241_250