@article{JRAM_1958__199_150365,
     author = {F. Loonstra},
     title = {Fortsetzung von {Gruppenhomomorphismen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {192--202},
     publisher = {mathdoc},
     volume = {199},
     year = {1958},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1958__199_150365/}
}