File:David Hilbert postcard.png
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預覽大小:371 × 599 像素。 其他解析度:148 × 240 像素 | 533 × 861 像素。
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[編輯]描述David Hilbert postcard.png | David Hilbert |
日期 |
在1912年之前 date QS:P,+1912-00-00T00:00:00Z/7,P1326,+1912-00-00T00:00:00Z/9 |
來源 | Reid, Constance (1970年) 《 Hilbert》、Berlin, Heidelberg: Springer Berlin Heidelberg Imprint Springer、第230頁 國際標準書號: 978-3-662-27132-2. |
作者 | 未知Unknown author |
授權許可 (重用此檔案) |
This photograph was taken in 1912 for postcards of faculty members at the University of Göttingen which were sold to students at the time (see "Hilbert", Constance Reid, Springer 1970). It was therefore published before 1923. Since it is not written in a foreign language, it is public domain in the US. It is likely that the original copyright holder was the photographer, and it is reasonable to assume that someone of professional age in 1912 died before 1964. This does not affect the copyright status in the US, but may mean that the image is also in the public domain in countries where the copyright term is life of author plus 50 years. |
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[編輯]Public domainPublic domainfalsefalse |
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目前 | 2017年2月14日 (二) 20:48 | 533 × 861(225 KB) | Quibik(留言 | 貢獻) | increase contrast | |
2017年2月14日 (二) 20:47 | 533 × 861(203 KB) | Quibik(留言 | 貢獻) | == {{int:filedesc}} == {{information |description={{w|David Hilbert}} |permission=This photograph was taken in 1912 for postcards of faculty members at the University of Göttingen which were sold to students at the time (see "Hilbert", Constance Reid,... |
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