%0 Journal Article %A Betley, Stanislaw %T Homological stability for On,n over semi-local rings %J Glasgow mathematical journal %D 1990 %P 255-259 %V 32 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009307/ %R 10.1017/S0017089500009307 %F 10_1017_S0017089500009307