13. Urges States, in accordance with international human rights standards and their respective domestic legal framework, to resolve problems of ownership of ancestral lands inhabited for generations by people of African descent and to promote the productive utilization of land and the comprehensive development of these communities, respecting their culture and their specific forms of decision-making; 14. Urges States to recognize the particularly severe problems of religious prejudice and intolerance that many people of African descent experience and to implement policies and measures that are designed to prevent and eliminate all such discrimination on the basis of religion and belief, which, when combined with certain other forms of discrimination, constitutes a form of multiple discrimination; INDIGENOUS PEOPLES 15. Urges States: (a) To adopt or continue to apply, in concert with them, constitutional, administrative, legislative, judicial and all necessary measures to promote, protect and ensure the enjoyment by indigenous peoples of their rights, as well as to guarantee them the exercise of their human rights and fundamental freedoms on the basis of equality, non-discrimination and full and free participation in all areas of society, in particular in matters affecting or concerning their interests; 51