Gronau, Hans-Dietrich ed. <br/><br/>
50th IMO - 50 years of International Mathematical Olympiads / 
ed. by Hans-Dietrich Gronau; Hanns-Heinrich Langmann and Dierk Schleicher  
 - Heidelberg:  Springer;  2011 
 - xiii, 297p. : 
<br/><br/><label>ISBN: </label>9783642145643 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Subjects--Index Terms: </label>Mathematics --Competitions. 
<br/><br/><label>Universal Decimal Class. No.: </label>51(076.2)  / GRO