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PROBLEMSEmeric Deutsch, Michel Bataille, Sam Vandervelde, Richard Torres, Cosmin Pohoata, Finbarr Holland, Michael Goldenberg, Mark Kaplan, Michael W. Botsko, Michael Becker, Ken Yanosko, Lenny Jones, Armstrong Problem Solvers, Paul Bracken, Michel Bataille, Cosmin Pohoata, Omran Kouba, Victor Kutsenok, Greg Oman and Missouri State University Problem Solving Group · Mathematics Magazine · 2009