1. The “Valletta Principles” for the Safeguarding and Management of Historic Cities, Towns and Urban Areas. Adopted by the 17th ICOMOS General Assembly on 28 November 2011. p. 6
https://www.icomos.org/Paris2011/GA2011_CIVVIH_text_EN_FR_final_20120110.pdf
2. Adaptive Re-Use of the Built Heritage: Preserving and Enhancing the Values of Our Built Heritage for Future Generations,2018
3. The Declaration of Amsterdam, Congress on the European Architectural Heritage, October 1975
https://www.icomos.org/en/and/169-the-declaration-of-amsterdam
4. Convention for the Protection of the Architectural Heritage of Europe (Granada Convention). 3 October 1985
https://rm.coe.int/168007a087
5. Charter for the Conservation of Historic Towns and Urban Areas (the Washington Charter)
https://www.icomos.org/charters/towns_e.pdf