%0 Journal Article %A Bob Hough %T Solution of the minimum modulus problem for covering systems %J Annals of mathematics %D 2015 %P 361-382 %V 181 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2015.181.1.6/ %R 10.4007/annals.2015.181.1.6 %G en %F 10_4007_annals_2015_181_1_6