%0 Journal Article %A Campbell, C. M. %A Miyamoto, I. %A Robertson, E. F. %A Williams, P. D. %T The efficiency of PSL(2, p)3 and other direct products of groups %J Glasgow mathematical journal %D 1997 %P 259-268 %V 39 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500032195/ %R 10.1017/S0017089500032195 %F 10_1017_S0017089500032195