Marcio Leal and  Marta Villamil,  A Motion Dictionary to Real-Time Recognition of Sign Language Alphabet Using Dynamic Time Warping and Artificial Neural Network.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2018, vol. 144(12). 879 - 884
    [viewed 06 May 2021]. Available from: https://publications.waset.org/pdf/10009870.