%0 Journal Article %A Adam Czornik %T Optimal control for a nonstationary linear system with a quadratic cost functional %J Mathematica Applicanda %D 1997 %P 3-11 %V 26 %N 40 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v26i40.1854/ %R 10.14708/ma.v26i40.1854 %G pl %F 10_14708_ma_v26i40_1854