1. On rings of quotients;Amitsur,1972
2. Jordan homomorphisms;Herstein;Trans. Amer. Math. Soc.,1956
3. Topics in ring theory;Herstein,1969
4. 3rd, Prime rings satisfying a generalized polynomial identity;Martindale;J. Algebra,1969
5. Jordan homomorphisms onto prime rings;Smiley,1957