The Sports Process: A Comparative and Developmental Approach | Austin, Merrill 10 July 2007 |
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"Scottish Journal of Political Economy" | Mazumdar, Partha 5 June 2006 |
Dart, James; Bandini, Paolo 21 February 2007 | "Procedures to determine the winner of a match or home-and-away" |
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Ingle, Sean; Glendenning, Barry 9 October 2003 |
"Law 3 — The Number of Players" | Winner, David 28 March 2005 |
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Catastrophic Injuries in High School and College Sports | Taylor, Louise 29 May 2008 |
It has been estimated that there were 22 million soccer players in the world in the early 1980s, and that number is increasing.
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