@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},
     year = {1984},
     volume = {187},
     zbl = {0548.20017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1984__187_173468/}
}