@article{10_1017_S204061850003389X,
     author = {Zassenhaus, Hans},
     title = {On {Trace} {Bilinear} {Forms} on {Lie-Algebras}},
     journal = {Glasgow mathematical journal},
     pages = {62--72},
     year = {1959},
     volume = {4},
     number = {2},
     doi = {10.1017/S204061850003389X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S204061850003389X/}
}