1. Height one primes of polycyclic group rings;Brown;J. London Math. Soc. (2),1985
2. Rings with Chain Conditions;Chatters,1980
3. Hereditary monoid rings;Cheng;J. Amer. Math. Soc.,1982
4. The Algebraic Theory of Semigroups;Clifford,1961
5. Algebra;Cohn,1982