@article{JRAM_1965__219_150691,
     author = {Artur Bergmann},
     title = {Formen auf {Moduln} \"uber kommutativen {Ringen} beliebiger {Charakteristik.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {113--156},
     publisher = {mathdoc},
     volume = {219},
     year = {1965},
     zbl = {0166.30005},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1965__219_150691/}
}