%0 Journal Article %A Krzysztof Szajowski %T Optimal choice of an object with ath rank %J Mathematica Applicanda %D 1982 %P 51-65 %V 10 %N 19 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v10i19.1533/ %R 10.14708/ma.v10i19.1533 %G pl %F 10_14708_ma_v10i19_1533