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Fotothek df tg Geometrie Planimetrie Flche Krper. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Abbildung Augsburg verschiedene Krperflchen Papier Kupferstich cm Geometrie Planimetrie Flche Krper ppn Druck Deutsche Fotothek gefrdert von der Deutschen Forschungsgemeinschaft Projekt Technikgeschichte Jh Verwalter