File:W. Ross Ashby signature, Letter from Ashby to Jacques Riguet, dated 20 April 1953.svg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:52, 16 April 2020 | 500 × 203 (20 KB) | Tenpop421 | Uploaded a work by W. Ross Ashby from http://ashby.de/rossashby.info/index.html Letter from en:W. Ross Ashby to en:Jacques Riguet, 20-Apr-1953, 1 page with UploadWizard |
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