@article{10_4153_CMB_1961_028_3,
     author = {Swanson, Jonathan},
     title = {Some {Elementary} {Properties} of {Bilinear} {Forms}},
     journal = {Canadian mathematical bulletin},
     pages = {249--259},
     year = {1961},
     volume = {4},
     number = {3},
     doi = {10.4153/CMB-1961-028-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1961-028-3/}
}