%0 Journal Article %A J. Friedrich %T On reduction of two-parameter prediction problems %J Studia Mathematica %D 1995 %P 147-158 %V 114 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-114-2-147-158/ %R 10.4064/sm-114-2-147-158 %G en %F 10_4064_sm_114_2_147_158