%0 Journal Article %A Jan Bochenek %T On the inverse problem of the Sturm-Liouville type for a linear elliptic partial differential equation with constant coefficients of the second order %J Annales Polonici Mathematici %D 1970 %P 331-341 %V 24 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-24-3-331-341/ %R 10.4064/ap-24-3-331-341 %G en %F 10_4064_ap_24_3_331_341