Schweiz auf Platz vier im World Happiness Report 2017
> <link https: youtu.be _blank external-link-new-window external link in new>Ein witziger Schlumpf-Film zum International Day of Happiness
> <link http: www.un.org en events happinessday _blank external-link-new-window external link in new>UN-Website
> <link http: worldhappiness.report _blank external-link-new-window external link in new>World Happiness Report