TY  - BOOK
AU  - Ollila, Pauli
TI  - A theoretical overview for variance estimation in sampling theory with some new techniques for complex estimators
T2  - Tutkimuksia forskningsrapporter research reports; 240
SN  - 9524673193
U1  - 519.535 
PY  - 2004///
CY  - Helsinki
PB  - Statistics Finland
KW  - MUESTREO
KW  - TEORIA
ER  -