WASET
    Yolina A. Petrova and  Georgi I. Petkov,  Role-Governed Categorization and Category Learning as a Result from Structural Alignment: The RoleMap Model.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2018, vol. 140(8). 578 - 585
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10009280.