@misc{Airy_George_Biddell_Nine-year,
 author={Airy, George Biddell},
 address={The Royal Observatory Greenwich},
 howpublished={online},
 publisher={The Royal Observatory, Greenwich},
 language={eng},
 title={Nine-year catalogue of 2263 stars, deduced from observations extending from 1868 to 1876},
 keywords={star catalogue, the epoch 1872., Greenwich observatory},
}