Implicit theories moderate the relation of positive future fantasies to academic outcomes Kappes, H.B. Stephens, E.J. Oettingen, Gabriele 2011 - Forschungsinformationssystem der UHH
Mental contrasting and the self-regulation of helping relations Oettingen, Gabriele Stephens, E.J. Mayer, D. Brinkmann, B. 2010 - Forschungsinformationssystem der UHH