1World Heritage Paper26:World Heritage Cultural Landscapes-A Handbook for Conservation and Management[EB/OL].http://whc.unesco.org/documents/publi_wh_papers_26_en.pdf.
2World Heritage Paper6:World Heritage Cultural Landscapes1992-2002[EB/OL].http://whc.unesco.org/documents/publi_wh_papers_06_en.pdf.