Takashi Mitsuishi and Koji Saigusa, Defuzzification of Periodic Membership Function on Circular Coordinates. journal = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. September 2014, vol. 94(10). 1288 - 1291 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/9999436.