@misc{Bessel_Friedrich_Wilhelm_Abhandlungen_1876,
 author={Bessel, Friedrich Wilhelm},
 address={Leipzig},
 howpublished={online},
 year={1876},
 publisher={Verlag von Wilhelm Engelmann},
 language={ger},
 type={text},
 title={Abhandlungen von Friedrich Wilhelm Bessel. Bd. 2},
 keywords={observational astronomy, stellar astronomy},
}