Persistent URL of this record https://hdl.handle.net/1887/5849
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- Article / Letter to editor
- open access
In Collections
This item can be found in the following collections:
BD +56°1618 and + 61°1294 as possible members of the Ursa Major group
- All authors
- Hertzsprung, E.
- Date
- 1942
- Volume
- 9
- Pages
- 286
- Publisher
- North Holland Publishing Company