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Summary

Description
Català: Retrat del matemàtic suís Johann Heinrich Graf (1852-1918)
Date before 1913
date QS:P,+1913-00-00T00:00:00Z/7,P1326,+1913-00-00T00:00:00Z/9
Source MacTutor History of Mathematics: http://www-history.mcs.st-andrews.ac.uk/PictDisplay/Graf.html
Author No coneguts

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Date/TimeThumbnailDimensionsUserComment
current16:21, 25 March 2018Thumbnail for version as of 16:21, 25 March 2018291 × 326 (12 KB)Ferran MirUser created page with UploadWizard

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