Yongyi Ran, ; Jian Yang, ; Enzhong Yang, ; Shuangwu Chen, : 'NaaS-enabled service composition in SDN environment' (Telecommunications, 2017), 'Network as a Service for Next Generation Internet', Chap. 10, pp. 243-263, DOI: 10.1049/PBTE073E_ch10
IET Digital Library, https://digital-library.theiet.org/;jsessionid=c6ldf9s6hs7q.x-iet-live-01content/books/10.1049/pbte073e_ch10