Dongjae Kang and  Sokho Son and  Jinmee Kim,  Design of Cloud Service Brokerage System Intermediating Integrated Services in Multiple Cloud Environment.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2014, vol. 96(12). 2134 - 2139
    [viewed 25 May 2022]. Available from: https://publications.waset.org/pdf/9999836.