@article{01496709, title = {On invertor elements and finitely generated subgroups of groups acting on trees with inversions.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {23}, year = {2000}, pages = {585-595}, doi = {10.1155/S0161171200002969}, zbl = {0983.20026}, language = {en}, url = {http://dml.mathdoc.fr/item/01496709} }
Mahmood, R.M.S.; Khanfar, M.I. On invertor elements and finitely generated subgroups of groups acting on trees with inversions.. International Journal of Mathematics and Mathematical Sciences, Tome 23 (2000) pp. 585-595. doi : 10.1155/S0161171200002969. http://gdmltest.u-ga.fr/item/01496709/