File:David Hilbert postcard.png
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![File:David Hilbert postcard.png](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/David_Hilbert_postcard.png/371px-David_Hilbert_postcard.png?20170214204833)
本预览的尺寸:371 × 599像素。 其他分辨率:148 × 240像素 | 533 × 861像素。
原始文件 (533 × 861像素,文件大小:225 KB,MIME类型:image/png)
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[编辑]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 |
来源 | Reid, Constance (1970年) 《 Hilbert》、Berlin, Heidelberg: Springer Berlin Heidelberg Imprint Springer、第230頁 ISBN: 978-3-662-27132-2. |
作者 | 未知Unknown author |
授权 (二次使用本文件) |
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. |
许可协议
[编辑]Public domainPublic domainfalsefalse |
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当前 | 2017年2月14日 (二) 20:48 | ![]() | 533 × 861(225 KB) | Quibik(留言 | 贡献) | increase contrast |
2017年2月14日 (二) 20:47 | ![]() | 533 × 861(203 KB) | Quibik(留言 | 贡献) | == {{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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