The sources for artist quotes in this article are listed below:
David Toop collection, British Library, 1989
Holger Czukay interview, Gunnar Habitz, Bamboo, 1990
Life In The Beehive, Richard Cook, The Wire, 1989
Words of the Shaman, Paul Lester, Melody Maker, 1989
David Sylvian, Mark Prendergast, Record Collector, 1990
Winter Magic: David Sylvian on Collaborating with Holger Czukay, The Quietus, 2018
Jon Hassell: Fourth World And Balancing The North And South Of You, John Kelman, Allaboutjazz.com, 2009
Can, Simon Trask, Music Technology, 1989
An interview with David Sylvian, on improvisation, sonic exploration and Holger Czukay, Michael Bonner, Uncut, 2018
The work of the original authors and publishers is gratefully acknowledged and excerpts are reproduced on this site under allowances for fair use in copyright law.