TY - JOUR AU - Bob Hough TI - Solution of the minimum modulus problem for covering systems JO - Annals of mathematics PY - 2015 SP - 361 EP - 382 VL - 181 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2015.181.1.6/ DO - 10.4007/annals.2015.181.1.6 LA - en ID - 10_4007_annals_2015_181_1_6 ER -