Group exhibition catalogue Achleitner, Friedrich et al. – Die wiener gruppe = the vienna group : a moment of modernity 1954-1960 / the visual works and the actions. – Edited by Peter Weibel. – Heidelberg : Springer Verlag, 1997. – 784 p. – German and English text.
Conference / Symposium Probleme der Künstlichen Intelligenz, Institut für Neue Medien, Frankfurt, Germany, February 12-13, 1990.