@article{JOLT_1996_6_2_a5,
     author = {W. Bertram},
     title = { On {Some} {Classes} of {Conformal} {Groups}},
     journal = {Journal of Lie Theory},
     pages = {215--247},
     year = {1996},
     volume = {6},
     number = {2},
     zbl = {0873.17030},
     url = {http://geodesic.mathdoc.fr/item/JOLT_1996_6_2_a5/}
}