@article{10_4153_CJM_1998_019_4,
     author = {Gross, Leonard},
     title = {Some {Norms} on {Universal} {Enveloping} {Algebras}},
     journal = {Canadian journal of mathematics},
     pages = {356--377},
     year = {1998},
     volume = {50},
     number = {2},
     doi = {10.4153/CJM-1998-019-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1998-019-4/}
}