TY  - JOUR
A1  - Wilson, C.
A1  - Oeppen, J.
A1  - Pardoe, MCFpdS
T1  - What is natural fertility? The modelling of a concept
Y1  - 1988
DO  - 10.2307/3644106
UR  - https://doi.org/doi:10.2307/3644106
VL  - 54
IS  - 1

ER  -