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@article{MZ_1984__187_173468, author = {James Howie}, title = {The p-adic {Topology} on a {Free} {Group:} {A} {Counterexample.}}, journal = {Mathematische Zeitschrift}, pages = {25--28}, publisher = {mathdoc}, volume = {187}, year = {1984}, zbl = {0548.20017}, url = {http://geodesic.mathdoc.fr/item/MZ_1984__187_173468/} }
James Howie. The p-adic Topology on a Free Group: A Counterexample.. Mathematische Zeitschrift, Tome 187 (1984), pp. 25-28. http://geodesic.mathdoc.fr/item/MZ_1984__187_173468/