TY  - JOUR
A1  - Knodel, J.
A1  - Van de Walle, E.
T1  - Breast feeding, fertility and infant mortality: An analysis of some early German data
Y1  - 1967
DO  - 10.2307/2172715
JF  - Population Studies
VL  - 21
IS  - 2
SP  - 109
EP  - -131

ER  -