%0 Journal Article %A Roggenkamp, Klaus W. %T On the Irreducible Lattices of Orders %J Canadian journal of mathematics %D 1969 %P 970-976 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-106-x/ %R 10.4153/CJM-1969-106-x %F 10_4153_CJM_1969_106_x