TY  - JOUR
AU  - T.J. Rao
TI  - Estimating the Variance of the Ratio Estimator for the Midzuno-Sen Sampling Scheme.
JO  - Metrika
PY  - 1977
SP  - 203
EP  - 208
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MET_1977__24_175725/
ID  - MET_1977__24_175725
ER  -