@article{MOMA_1949__53_176802,
     author = {Hans Petersson},
     title = {\"Uber die {Transformationsfaktoren} der relativen {Invarianten} linearer {Substitutionsgruppen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {17--41},
     publisher = {mathdoc},
     volume = {53},
     year = {1949},
     zbl = {0034.35001},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1949__53_176802/}
}