De Stijl was published by the Dutch painter, designer, writer, and critic Theo van Doesburg that served to propagate the group's theories. Along with Theo van Doesburg, the group's principal members were the painters Piet Mondrian, Vilmos Huszár, and Bart van der Leck, and the architects Gerrit Rietveld, Robert van 't Hoff, and J. J. P. Oud. The artistic philosophy that formed a basis for the group's work is known as "Neoplasticism"—the new plastic art (or "Nieuwe Beelding" in Dutch). According to Theo van Doesburg in the introduction of the magazine "De Stijl" 1917 no.1, the "De Stijl"-movement was a reaction to
Pieter van der Kruk the Dutch Olympic Committee, and between 1998 and 2002 headed the Dutch antidoping organization NeCeDo (Nederlands Centrum voor Dopingvraagstukken) in Rotterdam. Later he worked as TV sports commentator with Eurosport. Pieter van der Kruk Pieter "Piet" van der Kruk (born 13 August 1941) is a retired Dutch heavyweight weightlifter and shot putter. He won five national weightlifting titles (1964, 1965, 1967–1969) and four shot put titles (1964, 1965, 1967 and 1969), and held the national shot put record from 1967 to 1976. He qualified for the 1968 Summer Olympics both as a shot putter and weightlifter; he chose to compete