La Revue des Ressources

PDF's of text of the Internationale Situationiste.

Mark Dek

Short biography of Constant in Dutch.

Megastructures Reloaded

Short analysis of New Babylon in English and German.

Mieke Rozing

A video presentation for children about Constant in Dutch.

Notbored.org

Extensive background information on Constant in English.

Sikkens Foundation

Jury rapport of the Sikkens award in 1960, won by Aldo van Eyck and Constant for their project Voor een spatiaal colorisme in Dutch.

Situationist International Online

Texts by the SI in English.

Spatial Agency

Short insight in his New Babylon project in English.

Stedelijk Museum Schiedam

Information on the Constant works in their collection and on longterm loan.

Vrij beelden en Cobra

Expands on Cobra and individual artists in the group.

Wijsheden

Short biography of Constant in Dutch.