%0 Literatur %A Gucciardi, Daniel F. %E Gucciardi, Daniel F. %E Peeling, Peter %E Ducker, Kagan J. %E Dawson, Brian %D 2016 %G eng %@ 1440-2440 %@ 1878-1861 %T When the going gets tough : mental toughness and its relationship with behavioural perseverance %J Journal of science and medicine in sport %V 19 %N 1 %P S. 81–86 %U http://www.jsams.org/article/S1440-2440%2814%2900632-X/fulltext %U http://10.1016/j.jsams.2014.12.005