Rausch, Klaus (September 2, 2017). "Talk-Runde mit Mellotron-Liebhabern" [Talk round with Mellotron enthusiasts]. Amazona.de (in German). Archived from the original on September 13, 2017.
Rausch, Klaus (September 2, 2017). "Talk-Runde mit Mellotron-Liebhabern" [Talk round with Mellotron enthusiasts]. Amazona.de (in German). Archived from the original on September 13, 2017.