%0 Journal Article %A S. Trybuła %A K. Szajowski %T Decision making in an incompletely known stochastic system, I %J Applicationes Mathematicae %D 1987 %P 31-41 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-19-1-31-41/ %R 10.4064/am-19-1-31-41 %G en %F 10_4064_am_19_1_31_41