Beginning in the 1950s, he
played a central role in the Nederlandse Informele Groep (Netherlandish Informal Group) and the
Nul - groep (
Nul Group)-- which were affiliated with the European Informel movement and the ZERO Group respectively.
Beginning in the 1950s, he
played a central role in the Nederlandse Informele Groep (Netherlandish Informel Group) and the
Nul - groep (
Nul Group)-- which were affiliated with the European Informel movement and the Zero Group, respectively — and was included in numerous important and related group exhibitions including Zero - O -
Nul at the Gemeentemuseum Den Haag, The Hague, in 1964, and Amsterdam, Paris, Düsseldorf at the Solomon R. Guggenheim Museum, New York, in 1972.
A cofounder in 1960 of
Nul — the Dutch complement to the German Zero Group — Schoonhoven (1914 - 1994)
played an important role in the reductionist, materially conscious, and conceptually motivated European art scene of the»60s and»70s.