@article{MAN_1904__58_158132,
     author = {Emanuel Lasker},
     title = {Zur {Theorie} der kanonischen {Formen}},
     journal = {Mathematische Annalen},
     pages = {434--440},
     publisher = {mathdoc},
     volume = {58},
     year = {1904},
     zbl = {35.0122.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1904__58_158132/}
}