Gerhard Storck: Qualities of Space
(Excerpt from exhibition catalogue of TON:RAUM,
Museum Haus Lange, Krefeld, 1979)

Helga de la Motte-Haber:
Sound-Spaces-Fields-Objects
(From SOUND:SPACE, 1998)

Wulf Herzogenrath
(From SOUND:SPACE, 1998)

Bernhard Leitner interviewed by Wolfgang Pehnt
(Abridged and edited text from Künstler im Gespräch, Documenta-Documente, Cologne: Artemedia, 1984)

Acoustic Space. A conversation between Bernhard Leitner and Ulrich Conrads
(DAIDALOS, No. 17, Berlin, September 1985)