TY  - JOUR
AU  - F. Barański
TI  - The mean value theorem and oscillatory properties of certain elliptic equations in three dimensional space
JO  - Commentationes Mathematicae
PY  - 1976
SP  -  13
EP  - 14
VL  - 19
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v19i1.5833/
DO  - 10.14708/cm.v19i1.5833
LA  - pl
ID  - 10_14708_cm_v19i1_5833
ER  -