Shinpei Ogata and  Yoshitaka Aoki and  Hirotaka Okuda and  Saeko Matsuura,  An Automation of Check Focusing on CRUD for Requirements Analysis Model in UML.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2012, vol. 69(9). 1149 - 1157
    [viewed 18 February 2020]. Available from: https://publications.waset.org/pdf/7058.