2002
2002 - David Toop « Frame of Freedom. Improvisation, Otherness and Limits of Spontaneity », in Rob Young (ed), Undercurrents.The Hidden Wiring of Modern Music, New York/Londres,
Continuum/Wire, 2002.

https://www.cambridge.org/core/books/abs/music-sound-and-space/sound-installation-art/B44AF99142D5DF8A7980FA34ECBDE2AC