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The Edition Topoi research platform is an innovative, reliable information infrastructure. It serves the publication of citable research data such as 3D models, high-resolution pictures, data and databases. The content and its meta data are subject to peer review and made available on an Open Access basis. The published or publishable combination of citable research content and its technical and contextually relevant meta data is defined as Citable. The public data are generated via a cloud and can be directly connected with the individual computing environment.
The National Archives of the Netherlands (Nationaal Archief), which is situated in The Hague, holds over 3.5 million records that have been created by the central government, organisations and individuals and are of national significance. Many records relate to the colonial and trading history of the Netherlands in the period from 1600 to 1975. The Dutch presence in countries in North and South America, Africa and Asia is reflected within these collections.
The Roper Center for Public Opinion Research is one of the world's leading archives of social science data, specializing in data from surveys of public opinion. The data held by the Roper Center range from the 1930s, when survey research was in its infancy, to the present. Most of the data are from the United States, but over 100 nations are represented.