%0 Journal Article %A Ivan Korec %T Irreducible disjoint covering systems %J Acta Arithmetica %D 1984 %P 389-395 %V 44 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-44-4-389-395/ %R 10.4064/aa-44-4-389-395 %G en %F 10_4064_aa_44_4_389_395