@article{MZ_1969__110_171167,
     author = {L.W. Johnson and R.D. Riess},
     title = {A {Note} on a {Theorem} of {Davis.}},
     journal = {Mathematische Zeitschrift},
     pages = {211--212},
     publisher = {mathdoc},
     volume = {110},
     year = {1969},
     zbl = {0175.35103},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__110_171167/}
}