1
“... in the development of skills in sports officials. Elite association football (soccer) referees retrospectively...”
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2
von Helsen, Werner (Autor),
Erschienen in Journal of sports sciences, 24 (2006), 5, S. 521-528, Lit.
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Erschienen in Journal of sports sciences, 24 (2006), 5, S. 521-528, Lit.
3
von Helsen, Werner (Autor),
Erschienen in Journal of sports sciences, 25 (2007), 9, S. 991-994, Lit.
“... in association football in the paper by Helsen, Gilis, and Weston (2006). We agree that the existing knowledge...”Erschienen in Journal of sports sciences, 25 (2007), 9, S. 991-994, Lit.
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