@article{MZ_1975__141_172167,
     author = {Samuel Poss},
     title = {The {Frattini} {Subgroup} of {Locally} {Free} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {199--204},
     year = {1975},
     volume = {141},
     zbl = {0283.20024},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__141_172167/}
}