@article{JLT_1999_9_1_a11,
     author = {D. H. Lee},
     title = {Algebraic {Subgroups} of {Lie} {Groups}},
     journal = {Journal of Lie theory},
     pages = {271--284},
     year = {1999},
     volume = {9},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JLT_1999_9_1_a11/}
}