TY  - JOUR
AU  - Jan Bochenek
TI  - On some properties of eigenvalues and eigenfunctions of certain differential equations of the fourth order
JO  - Annales Polonici Mathematici
PY  - 1970
SP  - 113
EP  - 119
VL  - 24
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-24-2-113-119/
DO  - 10.4064/ap-24-2-113-119
LA  - en
ID  - 10_4064_ap_24_2_113_119
ER  -