• 2 Music Library (Mills)

• 2 Videos, Slides, Films

• 1 Cage, John
• 1 Criticism and interpretation
• 1 Glass, Philip

• 1 Cage, John
• 1 Darmon, Éric
• 1 Glass, Philip
• 1 Helms, Hans G. (Hans Günter), 1932-2012
• 1 Idéale Audience International
• 1 Ifage-Filmproduktion
• 1 Mallet, Franck
• 1 Südwestfunk (Baden-Baden, Germany)
• 1 Wergo (Firm)
• 1 Westdeutscher Rundfunk/Westdeutsches Fernsehen

• 2 English
• 1 French
• 1 Japanese
• 1 Spanish

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