TY  - JOUR
A1  - Heckhausen, J.
A1  - Wrosch, C.
A1  - Schultz, R.
T1  - A Motivational Theory of Life-Span Development
Y1  - 2010
DO  - 10.1037/a0017668
JF  - Psychological Review
VL  - 117

ER  -