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الخلاصة

وصف
Català: Retrat del matemàtic britànic Percy John Heawood (1861-1955)
تاريخ قرابة 1920
date QS:P,+1920-00-00T00:00:00Z/9,P1480,Q5727902
مصدر MacTutor History of Mathematics: http://www-history.mcs.st-andrews.ac.uk/PictDisplay/Heawood.html
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دلوقتي08:17، 29 سبتمبر 2018تصغير للنسخة بتاريخ 08:17، 29 سبتمبر 2018268 × 326 (11 كيلوبايت)Ferran MirUser created page with UploadWizard

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