1. Hondo T. and Mizuuchi I.,Proceedings - IEEE International Conference on Robotics and Automation, 2015, 756–761
2. Munasinghe S. R., Nakamura M., Aoki S., Goto S., and Kyura N.,Proceedings of the IEEE International Conference on Systems,Man and Cybernetics, 1999, II-854–II-859
3. Fuzzy logic = computing with words
4. Hopfield J. J.,Proceedings of the National Academy of Sciences of the United States of America,79, 2554–2558, 1982