File:Beltrami - Saggio di interpretazione della geometria non euclidea, 1868 (page 14 crop).png

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Italiano: Figure 1a e 2a del libro "Saggio di interpretazione della geometria non euclidea"
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Source Google Books
Author Eugenio Beltrami
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: Beltrami - Saggio di interpretazione della geometria non euclidea, 1868.djvu
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current13:44, 7 December 2021Thumbnail for version as of 13:44, 7 December 20211,876 × 1,304 (17 KB)Paperoastro (talk | contribs)Uploaded a work by Eugenio Beltrami from {{Google Book Search link|Ph8xC0lhFB4C}} with UploadWizard

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