"David Duchon-Doris" . "By-NC-ND 4.0" . "Hotel-Arce-201809-Drone-32"@en . "Hotel-Arce-201809-Drone-32"@fr . "Hotel-Arce-201809-Drone-32"@de . "Hotel-Arce-201809-Drone-32"@es . "Hotel-Arce-201809-Drone-32"@nl . . .