Comité intergouvernemental UNESCO pour le retour des biens culturels - Rapport du Sécretariat 15e session, 11-13 mai 2009

"Three cases are currently pending before the Committee: – the Parthenon Marbles (Greece, United Kingdom and the British Museum) – the Boğazköy Sphinx (Turkey, Germany and Berlin Museum) – the Makonde Mask (United Republic of Tanzania, Switzerland and Barbier-Mueller Museum)." - http://unesdoc.unesco.org/images/0018/001822/182210F.pdf.