TY  - JOUR
AU  - Zdzisław Frydrych
TI  - On certain oscillatory properties for solutions of an equation with a biharmonic leading part
JO  - Annales Polonici Mathematici
PY  - 1974
SP  - 225
EP  - 228
VL  - 30
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-30-3-225-228/
DO  - 10.4064/ap-30-3-225-228
LA  - en
ID  - 10_4064_ap_30_3_225_228
ER  -