%0 Journal Article %A Jan Bochenek %T On some linear eigenvalue problems for strongly elliptic systems with an indefinite weight matrix function %J Annales Polonici Mathematici %D 1989 %P 27-35 %V 50 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-50-1-27-35/ %R 10.4064/ap-50-1-27-35 %G en %F 10_4064_ap_50_1_27_35