%0 Journal Article %A Evans, Ronald J. %T Discrete free products of two complex cyclic matrix groups %J Glasgow mathematical journal %D 1979 %P 69-80 %V 20 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003748/ %R 10.1017/S0017089500003748 %F 10_1017_S0017089500003748