@article{MZ_1965__88_170417,
     author = {Bruno M\"uller},
     title = {Quasi-Frobenius-Erweiterungen.},
     journal = {Mathematische Zeitschrift},
     pages = {380--409},
     year = {1965},
     volume = {88},
     zbl = {0178.36703},
     url = {http://geodesic.mathdoc.fr/item/MZ_1965__88_170417/}
}