1. A precision sample and hold circuit with subnanosecond switching;Gray;IEEE Trans. Circuit Theory,1964
2. Fuzzification of flip-flop based on various fuzzy operations;Hirota;Bull. College of Engineering, Hosei Univ.,1987
3. Concept of fuzzy flip-flop;Hirota,1987
4. Fuzzy flip-flop as a basis of fuzzy memory modules;Hirota,1988
5. Fuzzy logic and its application to switching systems;Marinos;IEEE Trans. Comput.,1969