1. Carling, C, Bloomfield, J, Nelsen, L, and Reilly, T. The role of motion analysis in elite soccer: Contemporary performance measurement techniques and work-rate data.;Sports Med,2008
2. Carling, C, Le Gall, F, Reilly, T, and Williams, AM. Do anthropometric and fitness characteristics vary according to birth date distribution in elite youth academy soccer players?;Scand J Med Sci Sports,2009
3. Seasonal variation in fitness variables in professional soccer players.;Casajus;J Sports Med Phys Fit,2001
4. Clark, NA, Edwards, AM, Morton, RH, and Butterly, RJ.;Season-to-season variations of physiological fitness within a squad of professional male soccer players J Sports Sci Med,2008
5. Durnin, JVGR and Wormersley, J. Body fat assessed from total body density and its estimation from skinfold thickness: Measurements on 481 men and women aged from 16 to 72 years.;Br J Nutr,1974