Letter official opening de Appel, archive
Announcement of program in 1975. Main focus ‘body art’. Artists to show at de Appel in 1975:
Urs Lüthi, James Lee Byars, Lucio Castelli, Gina Pane, Vettor Pisane, Jurgen Klauke, Uwe Laysiepen, Ontani, Chris Burden, Günther Brus, Herman Nitch, Valie Export, Peter Weibel, Joseph Beuys, Marina Abramovic.