Rafal Scherer Janusz T. Starczewski Adam E. Gaweda New Methods for Uncertainty Representations in Neuro-Fuzzy Systems. 659-667 https://doi.org/10.1007/978-3-540-24669-5_86 2003 conf/ppam/2003 PPAM db/conf/ppam/ppam2003.html#SchererSG03