Lingyan Zhang, ; Mingzhe Yang, ; Yan Guo, ; Shangguang Wang, : 'Service selection and recommendation in integrated network environment' (Telecommunications, 2017), 'Network as a Service for Next Generation Internet', Chap. 6, pp. 135-158, DOI: 10.1049/PBTE073E_ch6
IET Digital Library, https://digital-library.theiet.org/;jsessionid=6grua1688195c.x-iet-live-01content/books/10.1049/pbte073e_ch6