Karlen, YvesHirt, CarmenMaag Merki, KatharinaSuter, Francesca2020-04-162020-04-1620191041-60801873-342510.1016/j.lindif.2019.101757https://irf.fhnw.ch/handle/11654/30999en370 - Erziehung, Schul- und BildungswesenThe role of implicit theories in students' grit, achievement goals, intrinsic and extrinsic motivation, and achievement in the context of a long-term challenging task01A - Beitrag in wissenschaftlicher Zeitschrift