%0 Journal Article %A Tang, C. Y. %T On the Frattini Subgroups of Generalized Free Products with Cyclic Amalgamations(1) %J Canadian mathematical bulletin %D 1972 %P 569-573 %V 15 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-099-5/ %R 10.4153/CMB-1972-099-5 %F 10_4153_CMB_1972_099_5