TY - JOUR AU - Allenby, R. B. J. T. AU - Tang, C. Y. AU - Tang, S. Y. TI - Notes on Frattini Subgroups of Generalized Free Products with Cyclic Amalgamation JO - Canadian mathematical bulletin PY - 1980 SP - 51 EP - 59 VL - 23 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1980-007-0/ DO - 10.4153/CMB-1980-007-0 ID - 10_4153_CMB_1980_007_0 ER -