TY  - JOUR
AU  - Jan Bochenek
TI  - On some problems in the theory of eigenvalues and eigenfunctions associated with linear elliptic partial differential equations of the second order
JO  - Annales Polonici Mathematici
PY  - 1964
SP  - 153
EP  - 167
VL  - 16
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-16-2-153-167/
DO  - 10.4064/ap-16-2-153-167
LA  - en
ID  - 10_4064_ap_16_2_153_167
ER  -