2019 16th International Conference on Service Systems and Service Management (ICSSSM) Service Systems and Service Management (ICSSSM), 2019 16th International Conference on. :1-5 Jul, 2019
Entropy. An International and Interdisciplinary Journal of Entropy and Information Studies (Entropy) (20220101), 24, no.~6, Paper No 839, 15~pp. eISSN: 1099-4300.