TY  - JOUR
AU  - A. Chaudhuri
TI  - Some Results Concerning Horvitz-Thompson 's Tl -Class of Estimators.
JO  - Metrika
PY  - 1975
SP  - 217
EP  - 224
VL  - 22
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MET_1975__22_175683/
ID  - MET_1975__22_175683
ER  -