Representatives of the International Centre for the Study of the Preservation and Restoration of Cultural Property, the International Council of Monuments and Sites and the International Union for Conservation of Nature and Natural Resources (hereinafter referred to as the "Rome Centre", "ICOMOS" and "IUCN" respectively) attended the meeting in an advisory capacity. The discussions were also followed by representatives of two other States Parties to the Convention, of the United Nations and of a non-governmental organization.