Шеховцов, В.А. “Тowards Validating Qos Requirements Using Stakeholder Assessments of Simulated Service Qualities”. Eastern-European Journal of Enterprise Technologies 2, no. 9(44) (April 6, 2010): 4–8. Accessed June 13, 2024. https://journals.uran.ua/eejet/article/view/2737.