Weekly External Load Correlation in Season Microcycles with Game Running Performance and Training Quantification in Elite Young Soccer Players oleh Vasileios Kanaras, Yiannis Michailidis, Athanasios Mandroukas, Andreas Stafylidis, Lazaros Vardakis, Angelos E. Kyranoudis, Kosmas Christoulas, Ioannis Gissis, Thomas I. Metaxas