Investigating the universe  papers presented to Zdenek Kopal on the occasion of his retirement, sept.ember 1981 
edited by F. D. Kahn                                            
 - Dordrecht  D. Reidel Publishing  1981 
 - x, 458p. 
<br/><br/><label>ISBN: </label>90-277-1325-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astronomy and astrophysics thesaurus<br/>Cosmology<br/>Large scale structure<br/>Universe
<br/><br/><label>Universal Decimal Class. No.: </label>52(082.1)  / ASS-91