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
Cor van der Hart to play professional football also suspended Van der Hart. Van der Hart was one of the players participating in the Watersnoodwedstrijd of 12 March 1953. This was a match played in the Parc des Princes stadium in Paris and was played in honour of the victims of the North Sea flood of 1953, which happened several weeks before the match. Van der Hart, who still played as a professional in France these days, together with several others like Bram Appel, Theo Timmermans, Bertus de Harder and Kees Rijvers stated in 2003 that he heard the news over the radio and