%0 Journal Article %A ÖZCAN, A. Ç. %A HARMANCI, A. %A SMITH, P. F. %T DUO MODULES %J Glasgow mathematical journal %D 2006 %P 533-545 %V 48 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089506003260/ %R 10.1017/S0017089506003260 %F 10_1017_S0017089506003260