@article{01932987,
title = {On the cyclic subgroup separability of free products of two groups with amalgamated subgroup.},
journal = {Lobachevskii Journal of Mathematics},
volume = {10},
year = {2002},
pages = {27-38},
zbl = {1049.20012},
language = {en},
url = {http://dml.mathdoc.fr/item/01932987}
}
Sokolov, E. On the cyclic subgroup separability of free products of two groups with amalgamated subgroup.. Lobachevskii Journal of Mathematics, Tome 10 (2002) pp. 27-38. http://gdmltest.u-ga.fr/item/01932987/