TY  - RPRT
TI  - Estimating mean lifetime.
AU  - John Bongaarts
AU  - Griffith Feeney
PY  - 2003
DO  - 10.1073/pnas.2035060100
UR  - https://pubmed.ncbi.nlm.nih.gov/14506294/
ID  - 14506294
ER  -