%0 Journal Article %A Jan Bochenek %T On the boundary domains of the n-th eigenfunctions for the self-adjoined elliptic equation %J Annales Polonici Mathematici %D 1965 %P 129-136 %V 17 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-17-2-129-136/ %R 10.4064/ap-17-2-129-136 %G en %F 10_4064_ap_17_2_129_136