Der Deutsche-Fußball-Fitness-Test (DFFT): Ohne breite Basis in der Fitness keine technischen Spitzenleistungen. - Naul, R. (Internationaler Trainer-Kongress 18.-20. Juli 2005, Düsseldorf, 2005)
Keywords: talent; aptitude; selection; sports game; junior elite sport; strength; diagnostics; test; performance; measuring station; soccer; physical conditioning ability; speed; action regulation; Germany; junior sports; training science; sport games