恩斯特·奧匹克 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "恩斯特·奧匹克" in Chinese language version.

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doi.org

Öpik, Ernst. The Densities of Visual Binary Stars. ApJ. 1916年12月, 44: 292–302. Bibcode:1916ApJ....44..292O. doi:10.1086/142296.
Öpik, Ernst. An estimate of the distance of the Andromeda Nebula. ApJ. 1922, 55: 406–410. Bibcode:1922ApJ....55..406O. doi:10.1086/142680.

harvard.edu

ui.adsabs.harvard.edu

Öpik, Ernst. The Densities of Visual Binary Stars. ApJ. 1916年12月, 44: 292–302. Bibcode:1916ApJ....44..292O. doi:10.1086/142296.
Öpik, Ernst. An estimate of the distance of the Andromeda Nebula. ApJ. 1922, 55: 406–410. Bibcode:1922ApJ....55..406O. doi:10.1086/142680.

news.cn

天问一号发射两周年，传回火卫一高清影像. 新华网. 2022-07-23 [2025-04-28]. （原始内容存档于2022-07-24）（中文）.

web.archive.org

天问一号发射两周年，传回火卫一高清影像. 新华网. 2022-07-23 [2025-04-28]. （原始内容存档于2022-07-24）（中文）.