%0 Journal Article %A Marc Berger %A Alexander Felzenbaum %A Aviezri Fraenkel %T Necessary condition for the existence of an incongruent covering system with odd moduli II %J Acta Arithmetica %D 1987 %P 73-79 %V 48 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-48-1-73-79/ %R 10.4064/aa-48-1-73-79 %G en %F 10_4064_aa_48_1_73_79