1. Coordination, the determinant of velocity specificity?
2. Apor P 1988 Successful formulae for fitness training In T. Reilly, A. Lees, K. Davids, & W. J. Murphy (Eds.),Science and football(pp. 95 – 105) London: E & FN Spon
3. Åstrand P-O Rodahl K 1986Textbook of work physiologyNew York: McGraw-Hill