TY  - RPRT
TI  - Re: "Survey inference for subpopulations".
AU  - S W Wen
PY  - 1997
DO  - 10.1093/oxfordjournals.aje.a009150
UR  - https://pubmed.ncbi.nlm.nih.gov/9063350/
ID  - 9063350
ER  -