1. Home page.
www.differencebetween.com/difference-between-structure-and-vs
infrastructure/
2. Home page.
https://en.wikipedia.org/wiki/Infrastructure
3. Raygorodsky, A.M.: Models of random graphs and their applications. Proc. MIPT 2(4), 130–140 (2010)
4. Serdyukova, N., Serdyukov, V.: Algebraic Formalization of Smart Systems. Theory and Practice, Smart Innovation, Systems and Technologies, SIST, vol. 91, Springer Nature, Switzerland (2018)
5. Home page.
https://en.wikipedia.org/wiki/Random_graph