%0 Journal Article %A Jordan, D. A. %T Unique factorisation of normal elements in non-commutative rings %J Glasgow mathematical journal %D 1989 %P 103-113 %V 31 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950000759X/ %R 10.1017/S001708950000759X %F 10_1017_S001708950000759X