- de.wikipedia.org Ingo Ludwig Frenzel
- my.mail.ru music/artists/Ingo Ludwig Frenzel
- zvyki.com artist/2101880-Ingo_Frenzel/
- muzvibe.org search/Ingo Frenzel
- last.fm ru/music/Ingo Frenzel
- mp3ha.org collection/artist/ingo ludwig frenzel
- muzbab.net music/ingo-ludwig-frenzel-history
- shazam.com ru-ru/artist/ingo-frenzel/284056278
- musportal.pro performer/351939976-ingo-ludwig-…