1. BONSALL, F. F., DUNCAN, J.: Complete normed algebras, Berlin: Springer-Verlag 1973
2. DORAN, R. S., BELFI, V. A.: Characterizations of C*-algebras: The Gelfand-Naimark Theorems. Pure and Applied Mathematics101, New York: Marcel-Dekker 1986
3. DORAN, R. S., TILLER, W.: P-commutativity of the Banach algebra L 1 ** (G). manuscripta math. 43, 85?86 (1983)
4. DORAN, R. S., TILLER, W.: Extensions of pure positive functionals on Banach *-algebras. Proc. Amer. Math. Soc. 82, 583?586 (1983)
5. DORAN, R. S., WICHMANN, J.: Approximate identities and factorization in Banach modules. Lecture Notes in Math.768, 305 pp., Berlin-Heidelberg-New York: Springer 1979