@article{ELA_2005__13__a9,
     author = {Szechtman, Fernando},
     title = {Structure of the group preserving a bilinear form.},
     journal = {The electronic journal of linear algebra},
     pages = {197--239},
     publisher = {mathdoc},
     volume = {13},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2005__13__a9/}
}