- Nachrichten. Austria. 22 May 2015. ""Free Hugs" -
Freiwillige verteilen herzige Umarmungen". Heute.at. Austria. 17 May 2015.
Archived from the original...
- MH 582
Guten Morgen in F major, MH 206 Hätt i
glaubt in F major, MH 707
Herzige Nani in E-flat major, MH 618 Ich und Du in F major, MH 708 La mia signora...