1. N. Bourbaki, Algebra [Russian translation], Nauka, Moscow (1966).
2. K. A. Zhevlakov, "Solvability and nilpotency of Jordan rings," Algebra i Logika,5, No. 3, 37–58 (1966).
3. A. M. Slin'ko, "On the radicals of Jordan rings," Algebra i Logika,11, No. 2, 206–215 (1972).
4. A. I. Shirshov, "On some nonassociative nilrings and algebraic algebras," Matem. Sb.,41, No. 3, 381–394 (1957).
5. N. Jacobson, "Structure theory for a class of Jordan algebras," Proc. Nat. Acad. Sci. USA,55, 243–251 (1966).