%0 Journal Article %A Bostock, F. A. %A Patterson, E. M. %T A generalisation of Divinsky's radical %J Glasgow mathematical journal %D 1963 %P 75-87 %V 6 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034778/ %R 10.1017/S2040618500034778 %F 10_1017_S2040618500034778