TY  - JOUR
A1  - Skirbekk, V.
A1  - Loichinger, E.
A1  - Weber, D. 
T1  - Variation in cognitive functioning as a refined approach to comparing aging across countries
Y1  - 2012
DO  - 10.1073/pnas.1112173109
JF  - Proceedings of the National Academy of Sciences 
VL  - 109
IS  - 3
SP  - 770
EP  - -774

ER  -