1. AEWA Secretariat (2015) MOP6-proceedings of the sixth session of the meeting of the parties to the agreement on the conservation of African-Eurasian migratory waterbirds. Bonn, Germany, 9 - 14 november 2015. https://www.unep-aewa.org/sites/default/files/document/MOP6_proceedings_final_161216.pdf
2. AEWA Secretariat (2018) Text and annexes as amended by 7th meeting of the parties to the agreement on the conservation of African-Eurasian migratory waterbirds, Durban, South Africa, 4 - 8 December 2018. https://www.unep-aewa.org/sites/default/files/basic_page_documents/agreement_text_english_final.pdf
3. Amano T, Székely T, Sandel B et al (2018) Successful conservation of global waterbird populations depends on effective governance. Nature 553:199–202
4. Anderson MD, Kolberg H, Anderson PC, Dini J, Abrahams A (2003) Waterbird populations at the Orange River mouth from 1980–2001: a re-assessment of its Ramsar status. Ostrich-Journal of African Ornithology 74(3–4):159–172
5. Baillie J, Hilton-Taylor C, Stuart SN (eds) (2004) 2004 IUCN red list of threatened species: a global species assessment. IUCN Gland, Switzerland and Cambridge, UK, p 191