Vlado Kitanovski and  Dimitar Taskovski and  Sofija Bogdanova,  Combined Hashing/Watermarking Method for Image Authentication.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2007, vol. 6(6). 1694 - 1700
    [viewed 18 October 2019]. Available from: https://publications.waset.org/pdf/6487.