FREI OTTO, THE GERMAN PAVILION, EXPO 1967, The Strength of Architecture

FREI OTTO, THE GERMAN PAVILION, EXPO 1967

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FREI OTTO, THE GERMAN PAVILION, EXPO 1967, The Strength of Architecture

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FREI OTTO, THE GERMAN PAVILION, EXPO 1967, The Strength of Architecture

Frei Otto: an architectural dreamer who was ahead of the curve - The Globe and Mail

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the track east Organic architecture, Expo 67, Membrane structure