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@article{RCM_1993__27_1-2_181891, author = {R. M. S. Mahmud}, title = {On commuting elemts of groups acting on trees}, journal = {Revista colombiana de matematicas}, pages = {293--301}, publisher = {mathdoc}, volume = {27}, number = {1-2}, year = {1993}, zbl = {0813.20025}, url = {http://geodesic.mathdoc.fr/item/RCM_1993__27_1-2_181891/} }
R. M. S. Mahmud. On commuting elemts of groups acting on trees. Revista colombiana de matematicas, Tome 27 (1993) no. 1-2, pp. 293-301. http://geodesic.mathdoc.fr/item/RCM_1993__27_1-2_181891/