![]() | 50th IMO - 50 Years of International Mathematical Olympiads Prof. Dr. Hans-Dietrich Gronau is Professor of Mathematics at Rostock University, Rostock Dipl.Math. Hanns-Heinrich Langmann is a member of Bildung & Begabung e.V., Bundeswettbewerb Mathematik, Bonn Prof. Dr. Dierk Schleicher ist Professor of Mathematics at Jacobs University, Bremen |
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