@article{MOMA_1950__54_176839,
     author = {Fritz Hohenberg},
     title = {\"Uber ddie {Zusammensetzung} zweier gleichf\"ormigen {Schraubungen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {221--234},
     publisher = {mathdoc},
     volume = {54},
     year = {1950},
     zbl = {0037.23301},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1950__54_176839/}
}