Gronau, Hans-Dietrich O. F. <br/><br/>
50th IMO : 50 years of International Mathematical Olympiads/ 
by Hans-Dietrich O. F. Gronau 
 - London:  Springer ,  2010 
 - 297p. 
<br/><br/><label>ISBN: </label>9783642145643 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Competitions
<br/><br/><label>Dewey Class. No.: </label>510  / Im