1. International Cultural Tourism Charter – Managing Tourism at Places of Heritage Significance,1999
2. Operational Guidelines for the Implementation of the World Heritage Convention,2008
3. What do you mean. Sustainability and Cultural Heritage”?;Abraham,2011
4. Towards an Integrated Approach to Cultural Heritage for Europe (2014/2149(INI)) Committee on Culture and Education Rapporteur;Parliament,2015
5. Special Eurobarometer 466 – Cultural Heritage. Report;Union,2017