WASET
    Neerja Bhatnagar and  Benjoe A. Juliano and  Renee S. Renner,  Data Annotation Models and Annotation Query Language.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2007, vol. 9(9). 2922 - 2927
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10821.