Astronomy: Earth's seven sisters

Nature. 2017 Feb 22;542(7642):421-423. doi: 10.1038/542421a.

Author

Ignas A G Snellen¹

Affiliation

¹ Leiden Observatory, Leiden University, 2300 RA Leiden, Netherlands.

PMID: 28230129
DOI: 10.1038/542421a

No abstract available

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