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• n  United States economist (born in the Netherlands) (1910-1985)

• Koopmans
• Tjalling Koopmans
• Tjalling Charles Koopmans

News & Articles

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• My Life, My Words: Toy cupboard tells a loving story
  Sharon Koopmans Bloemendaal of Rochester tells the story of her father's special homemade Christmas gift in 1946.
  Dec. 29, 2013 - Rochester Democrat and Chronicle