Fang Zheng Bin Hu Li Liu Tingshao Zhu Yongchang Li Yanbin Qi Fuzzy Logic in Exploring Data Effects: A Way to Unveil Uncertainty in EEG Feedback. 754-763 2009 HCI (11) http://dx.doi.org/10.1007/978-3-642-02809-0_80 conf/hci/2009-11 db/conf/hci/hci2009-11.html#ZhengHLZLQ09