• 

  The British Chess Magazine - Google Books

  http://books.google.de/books?id=92RLAAAAYAAJ&q=%22an+applicant+for+the+GM+title+will+need+a+current+rating+of+at+least+2450%22&d

  Keine Beschreibung vorhanden.

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  Category:Chess players from Canada – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Chess_players_from_Canada?uselang=de

  Keine Beschreibung vorhanden.

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  Category:Chess players from the United States – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Chess_players_from_the_United_States?uselang=de

  Keine Beschreibung vorhanden.

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