@article{MS2_1984__54_166899,
     author = {Christoph Kirfel},
     title = {Erweiterung dreielementiger {Basen} bei konstanter {Frobeniuszahl.}},
     journal = {Mathematica Scandinavica},
     pages = {310--317},
     publisher = {mathdoc},
     volume = {54},
     year = {1984},
     zbl = {0549.10042},
     url = {http://geodesic.mathdoc.fr/item/MS2_1984__54_166899/}
}