@misc{Dyson_Frank_Watson_Catalogue_1921,
 author={Dyson, Frank Watson},
 address={London},
 howpublished={online},
 year={1921},
 publisher={His Majesty's Stationery Office},
 language={eng},
 title={Catalogue of double stars from observations made at Royal Observatory, Greenwich},
 keywords={star catalogue, binary stars catalogue},
}