@article{JRAM_1973__258_151288,
     author = {Erich Baumgartner},
     title = {Produkt von {Formen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {161--172},
     publisher = {mathdoc},
     volume = {258},
     year = {1973},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1973__258_151288/}
}