Jianming Lu Xue Yuan Takashi Yahagi A Method of Face Recognition Based on Fuzzy c-Means Clustering and Associated Sub-NNs. 150-160 2007 18 IEEE Transactions on Neural Networks 1 http://doi.ieeecomputersociety.org/10.1109/TNN.2006.884678 db/journals/tnn/tnn18.html#LuYY07