TY - JOUR AU - Krzysztof Szajowski TI - Optimal choice of an object with ath rank JO - Mathematica Applicanda PY - 1982 SP - 51 EP - 65 VL - 10 IS - 19 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v10i19.1533/ DO - 10.14708/ma.v10i19.1533 LA - pl ID - 10_14708_ma_v10i19_1533 ER -