%0 Journal Article %A Barbara Biły %T Optimal control of a two-dimensional linear system with a quadratic performance index with constraints on the trajectory and the control %J Mathematica Applicanda %D 1997 %P 21-29 %V 26 %N 40 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v26i40.1856/ %R 10.14708/ma.v26i40.1856 %G pl %F 10_14708_ma_v26i40_1856