title: A brief historical account of Madrid's qanats.
authors.affiliation: Departamento de Geodinámica, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Madrid, Spain. pemartin@geo.ucm.es
authors.forename: P
authors.initials: P
authors.lastname: Martínez-Santos
authors.forename: P E
authors.initials: PE
authors.lastname: Martínez-Alfaro
mesh_terms: D002947:Cities / Q000266:history*; D004779:Environment Design; D060587:Groundwater; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049674:History, 21st Century; D049691:History, Medieval; D012498:Sanitary Engineering / Q000266:history*; D013030:Spain; D014881:Water Supply / Q000266:history*