@article{01657584, title = {Near Frattini subgroups of residually finite generalized free products of groups.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {117-121}, doi = {10.1155/S0161171201005397}, zbl = {1053.20024}, language = {en}, url = {http://dml.mathdoc.fr/item/01657584} }
Azarian, Mohammad K. Near Frattini subgroups of residually finite generalized free products of groups.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 117-121. doi : 10.1155/S0161171201005397. http://gdmltest.u-ga.fr/item/01657584/