TY  - JOUR
A1  - Frank, O.
A1  - Bongaarts, J.
T1  - Behavioural and biological determinants of fertility transition in sub-Saharan Africa
Y1  - 1991
DO  - 10.1002/sim.4780100203
JF  - Statistics in Medicine
VL  - 10
IS  - 2
SP  - 161
EP  - -175

ER  -