WASET
    Siddhartha Bhattacharyya and  Paramartha Dutta and  Ujjwal Maulik and  Prashanta Kumar Nandi,  Multilevel Activation Functions For True Color Image Segmentation Using a Self Supervised Parallel Self Organizing Neural Network (PSONN) Architecture: A Comparative Study.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2007, vol. 8(8). 2452 - 2464
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/12738.