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Physical Culture and Sport. Studies and Research > 2010 > 50 > 1 > 72-78
Physical Culture and Sport. Studies and Research > 2010 > 50 > 1 > 72-78
Annals of Telecommunications > 2007 > 62 > 3-4 > 486-512
Ekonomia i Środowisko > 2005 > nr 1 > 7--23