Reports on astronomy 
edited by  J. P. Swings  
 - Dordrecht  Kluwer Academic  1988 
 - viii, 708p. 
 - Transactions of the IAU; vol. XXA .
<br/><br/><label>ISBN: </label>90-277-2734-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>IAU Transactions
<br/><br/><label>Universal Decimal Class. No.: </label>063:52  / IAU-T20A