@article{JRAM_1930__163_149735,
     author = {Werner Schmeidler},
     title = {Zum {\"Aquivalenzproblem} beschr\"ankter {Bilinearformen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {135--140},
     publisher = {mathdoc},
     volume = {163},
     year = {1930},
     zbl = {56.0858.05},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1930__163_149735/}
}