The WEMF AG für Werbemedienforschung collects figures on what in Switzerland?
WEMF AG für Werbemedienforschung The WEMF AG für Werbemedienforschung collects figures on media usage in Switzerland and Liechtenstein.
Swisstopo Swisstopo is the official name for the Swiss Federal Office of Topography (in German: "Bundesamt für Landestopografie"; French: "Office fédéral de topographie"; Italian: "Ufficio federale di topografia"; Romansh: "Uffizi federal da topografia"), Switzerland's national mapping agency.