Tài liệu tham khảo WikiPedia: Gerpinnes http://www.gerpinnes.be/ http://www.gerpinnes.be http://www.unitegerpinnes.be //tools.wmflabs.org/geohack/geohack.php?language=v... https://web.archive.org/web/20060219110138/http://... https://commons.wikimedia.org/wiki/Category:Gerpin...
