TY  - JOUR
A1  - Li, Hongbin
A1  - Zhang, Junsen
A1  - Zhu, Yi
T1  - The quantity–quality trade–off of children in a developing country: Identification using Chinese twins
Y1  - 2008
DO  - 10.1353/dem.2008.0006
UR  - https://doi.org/10.1353/dem.2008.0006
VL  - 45
IS  - 1

ER  -