1. Rings with Polynomial Identities;Procesi,1973
2. Semiprime rings with generalized identities;Beidar;Uspehi Mat. Nauk (Russian Math. Surveys),1977
3. Algebra II, Ring Theory;Faith,1976
4. Noncommutative Rings;Herstein,1968
5. On varieties of associative rings, I;Lvov;Algebra and Logic,1973