Katgert-Merkelijn, J. K. <br/><br/>
The letters and papers of Jan Hendrik Oort  as archeived in the University library, Leiden 
J. K. Katgert-Merkelijn                                    
 - Dordrecht  Kluwer Academic  1997 
 - xxx, 198p. 
 - Astrophysics and space science library; v. 213 .
<br/><br/><label>ISBN: </label>0-7923-4542-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Jan Hendrik Oort<br/>Letters and papers
<br/><br/><label>Universal Decimal Class. No.: </label>52(082.1)  / ASS-213