1. Zelmanov E. I., “Prime Jordan algebras,” Algebra and Logic, 18, No. 2, 103–111 (1979).
2. Zelmanov E. I., “On prime Jordan algebras. II,” Siberian Math. J., 24, No. 1, 69–104 (1983).
3. Pchelintsev S. V., “Prime algebras and absolute zero divisors,” Math. USSR Izv., 28, No. 1, 79–98 (1987).
4. Pchelintsev S. V., “Nilpotent elements and nil-radicals of alternative algebras,” Algebra and Logic, 24, No. 6, 441–454 (1985).
5. Medvedev Yu. A. and Zelmanov E. I., “Some counter-examples in the theory of Jordan algebras,” in: Nonassociative Algebraic Models (Zaragoza, 1989), Nova Sci. Publ., Commack, NY, 1992, pp. 1–16.