CMS/SMC
Canadian Mathematical Society
www.cms.math.ca
Canadian Mathematical Society
  location:  About Ushistory of the society
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Geoffery J. Butler had 3 appointments :

Canadian Mathematical Olympiad Committee       1981 - 1983 , served as chair
Canadian Mathematical Olympiad Committee       1984 - 1986
International Mathematical Olympiad Committee       1985 - 1987 , served as chair

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