24-Aug-2016 | The origins of mental toughness : prosocial behavior and low internalizing and externalizing problems at age 5 predict higher mental toughness scores at age 14 | Sadeghi Bahmani, Dena; Hatzinger, Martin; Gerber, Markus; Lemola, Sakari; Clough, Peter J.; Perren, Sonja; von Klitzing, Kay; von Wyl, Agnes; Holsboer-Trachsler, Edith; Brand, Serge |