1. A. I. Shirshov, ?On a conjecture in the theory of Lie algebras,? Sib. Mat. Zh.,3, No. 2, 297?301 (1962).
2. L. A. Bokut', ?Embeddings in simple associative algebras,? Algebra Logika,15, No. 2, 117?142 (1976).
3. N. Jacobson, Exceptional Lie Algebras, Marcel Dekker (1971).
4. V. N. Remeslennikov, ?A finitely presented group, whose center is not finitely generated,? Algebra Logika,13, No. 4, 450?459 (1974).
5. O. G. Kharlampovich, ?A finitely presented solvable group with insoluble equality problem,? in: 7th All-Soviet Symposium on Group Theory. Theses, Krasnoyarsk (1980).