TY  - JOUR
A1  - Keyfitz, N.
T1  - Seven ways of causing the less developed countries’ population problem to disappear - in theory
Y1  - 1992
DO  - 10.1007/BF01797550
JF  - European Journal of Population
VL  - 8
IS  - 2
SP  - 149
EP  - -167

ER  -