1. R. Ierusalimschy, Programming in Lua, Lua.org, 4th edition (2016).
2. J. Celko, Trees and Hierarchies in SQL for Smarties, Morgan Kaufmann, 2nd edition (2012).
3. C. Chasseur, Y. Li and J. M. Patel, «Enabling JSON Document Stores in Relational Systems» in: Proceedings of the 16th International Workshop on the Web and Databases, pp. 1–6 (2013).
4. Emerging Technologies and Applications in Data Processing and Management
5. MODEL FOR DYNAMIC AND HIERARCHICAL DATA REPOSITORY IN RELATIONAL DATABASE