TY  - JOUR
A1  - Obermeyer, M.C.
T1  - Qualitative methods: a key to a better understanding of demographic behaviour?
Y1  - 1997
DO  - 10.2307/2137381
JF  - Population and Development Review
VL  - 23
IS  - 4
SP  - 813
EP  - -818

ER  -