%0 Journal Article %A Gerhard, J. A. %A Petrich, Mario %T Free bands and free *-bands %J Glasgow mathematical journal %D 1986 %P 161-179 %V 28 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006480/ %R 10.1017/S0017089500006480 %F 10_1017_S0017089500006480