1. Lectures on Exceptional Lie Groups;Adams,1996
2. The octonions;Baez;Bull. Amer. Math. Soc. (N.S.),2001
3. Lie Groups and Lie Algebras;Baez,2002
4. Lie Groups and Lie Algebras;Baez,2005
5. Nilpotent orbits, normality, and Hamiltonian group actions;Brylinski;J. Amer. Math. Soc.,1994