Fatima Akhmedova and Simon Liao, Face Recognition Using Discrete Orthogonal Hahn Moments. journal = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2015, vol. 102(6). 1543 - 1549 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10002256.