Adolescent performers’ perspectives on mental toughness and its development : the utility pf the bioecological model

by Mahoney, John W. (Author), ... Gucciardi, Daniel F. (Author), Mallett, Clifford J. (Author), Ntoumanis, Nikos (Author)
Published in The sport psychologist, 28 (2014), 3, S. 233-244, Lit.