Moore Berrien; Nordgren Eric A.: Remark on the Jordan model for contractions of class C.0. In: Acta scientiarum mathematicarum, (37) 3-4. pp. 307-312. (1975)
Clancey Kevin F.; Moore Berrien: Operators of class C0(N) and transitive algebras. In: Acta scientiarum mathematicarum, (36) 1-2. pp. 215-218. (1974)
Moore Berrien; Nordgren Eric A.: On quasi-equivalence and quasi-similarity. In: Acta scientiarum mathematicarum, (34). pp. 311-316. (1973)