@article{MAN_1969__181_161826,
     author = {C.W. WEINBAUM},
     title = {Partitioning a {Primitive} {Word} into a {Generating} {Set.}},
     journal = {Mathematische Annalen},
     pages = {157--162},
     year = {1969},
     volume = {181},
     zbl = {0162.32901},
     url = {http://geodesic.mathdoc.fr/item/MAN_1969__181_161826/}
}