{"id": "cc-by-sa/4.0", "name": "Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International (CC-BY-SA 4.0)", "url": "http://creativecommons.org/licenses/by-sa/4.0/", "quelle": "BGR, BGS, BRGM, EAWAG & UNESCO (2022): Ressources en eaux souterraines dans la région de la CEDEAO – Groundwater resources in the ECOWAS region. 1 : 5 000 000. DOI: 10.25928/GWR-ECOWAS.1"}