He was involved with Situationist International before being expleed in 1960. He had been involved with Constant and Har Oudejans[?] in setting up a labyrinth in the Stedelijk Museum[?] of Amsterdam. This project fell apart amidst acimony. Officially he was expelled for designing churches, although Asger Jorn relates the expulsion more to the "Amsterdam affair.
wikipedia.org dumped 2003-03-17 with terodump