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    Shujun Fu and  Qiuqi Ruan and  Wenqia Wang,  Feature Preserving Image Interpolation and Enhancement Using Adaptive Bidirectional Flow .   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2007, vol. 2(2). 445 - 448
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/12860.