%0 Journal Article %A LORENZ, MARTIN %T RATIONAL GROUP ACTIONS ON AFFINE PI-ALGEBRAS %J Glasgow mathematical journal %D 2013 %P 101-111 %V 55 %N A %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089513000530/ %R 10.1017/S0017089513000530 %F 10_1017_S0017089513000530