1. UNESCO (1972) Convention concerning the protection of the world cultural and natural heritage. http://whc.unesco.org/en/conventiontext/. Last accessed 2020/11/30
2. ICOMOS (2003) Principles for the analysis, conservation and structural restoration of architectural heritage. https://www.icomos.org/en/resources/charters-and-texts. Last accessed 2020/11/30
3. UNESCO (2019) Operational guidelines for the implementation of the World Heritage Convention. http://whc.unesco.org/en/guidelines/. Last accessed 2020/11/30
4. ICOMOS (1994) The Nara document on authenticity. https://www.icomos.org/en/resources/charters-and-texts. Last accessed 2020/11/30
5. ICOMOS (2003) Principles for the preservation and conservation-restoration of wall paintings. https://www.icomos.org/en/resources/charters-and-texts. Last accessed 2020/11/30