WASET
    F. Sarabchi and  A. H. Darvishan and  H. Yeganeh and  H. Ahmadian,  Service Architecture for 3rd Party Operator's Participation.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2007, vol. 11(11). 1631 - 1636
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/3471.