 One of the most influential manifestos for the Structuralist movement was compiled by Aldo van Eyck in the architectural magazine "Forum" 7/1959.It was drawn up as the programme for the International Congress of Architects in Otterlo in 1959.The central aspect of this issue of "Forum" was a frontal attack on the Dutch representatives of CIAM-Rationalism who were responsible for the reconstruction work after World War II, (for tactical reasons, planners like van Tijen, van Eesteren, Merkelbach and others were not mentioned).