@article{MZ_1958__69_169731,
     author = {B.H. Neumann},
     title = {Ascending {Verbal} and {Frattini} {Series.}},
     journal = {Mathematische Zeitschrift},
     pages = {164--172},
     publisher = {mathdoc},
     volume = {69},
     year = {1958},
     zbl = {0080.01704},
     url = {http://geodesic.mathdoc.fr/item/MZ_1958__69_169731/}
}