@misc{_Dritter_1934,
 address={Berlin},
 howpublished={online},
 year={1934},
 publisher={Ferd. Dümmlers Verlagsbuchhandlung},
 language={ger},
 title={Dritter Fundamentalkatalog des Berliner Astronomischen Jagrbuchs},
 keywords={fundamental catalogue of stars, the epoch 1950.0},
}