@article{MAN_1984__266_163871,
     author = {Patrick B. Chen and Ta-Sun Wu},
     title = {On a {Class} of {Topological} {Groups.}},
     journal = {Mathematische Annalen},
     pages = {499--506},
     publisher = {mathdoc},
     volume = {266},
     year = {1984},
     zbl = {0518.22006},
     url = {http://geodesic.mathdoc.fr/item/MAN_1984__266_163871/}
}