Léger, KarineElshout, Sef van denHeich, HermannNussio, FabioHřebíček, JiříHradec, JiříPelikán, EmilMirovský, OndřejPillmann, WernerHoloubek, IvanBandholtz, Thomas2019-09-202019-09-202009https://dl.gi.de/handle/20.500.12116/27879Www.airqualitynow.eu, a common website and air quality indices to compare cities across EuropeText/Conference Paper