TY - JOUR AU - H. Schneeberger TI - The Problem of Optimum Stratification and Allocation with q = n N > 0 JO - Metrika PY - 1981 SP - 179 EP - 190 VL - 28 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MET_1981__28_175815/ ID - MET_1981__28_175815 ER -