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Sixth Meeting of the Members of the German Scientific Association for Aeronautics
| Year: | 1921 |
|---|---|
| Document Type: | N/A |
| Series: | NACA Technical Memorandums |
| Report Number: | NACA-TM-20 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc53619/ |
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