1. Structure of Algebras;Albert,1939
2. The arithmetics of octaves and of the group G2;van der Blij,1959
3. The Algebraic Theory of Spinors;Chevalley,1954
4. Semi-simple subalgebras of semi-simple Lie algebras;Dynkin;Mat. Sbornik,1952
5. Semisimple subalgebras of semisimple Lie algebras