Hipparcos and Tycho catalogues  vol. 11, Hipparcos variability annex, periodic and unsolved variables 
European Space Agency                                        
 - Netherlands  European Space Agency  1997 
 - [various pagings.] 
 - ESA SP-1200 .
<br/><br/><label>ISBN: </label>92-9092-399-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hipparcos and Tycho catalogues, Catalog-Hipparcos and Tycho, Star Catalogue
<br/><br/><label>Universal Decimal Class. No.: </label>083.8:524  / ESA-11