Small-sided games: an optimal training tool to represent tactical match demands in elite-standard youth soccer players? - Olthof, S. B. H.; Frencken, W. G. P.; Lemmink, K. A. P. M. (Just play it - "Innovative, international approaches to games", 2016)
Keywords: soccer; junior elite sport; tactics; training; game form; Germany; sport games; junior sports