1. Introduction to Many Valued Logics;ACKERMAN,1967
2. Algebraic analysis of many valued logics;CHANG;Trans. Amer. Math. Soc.,1958
3. Fuzzy topological spaces;CHANG;J. Math. Anal. Appl.,1968
4. CHANG, C. L., and LEE, R. C. T. Symbolic logic and mechanical theorem proving. (Unpublished manuscript, 1971.)
5. CHANG, S. K. On the execution of fuzzy programs using finite state machines. IEEE Trans. Comp. (in press).