TY  - JOUR
AU  - Chiappinelli, Raffaele
TI  - Estimates on the eigenvalues for some nonlinear ordinary differential operators
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1989
SP  - 441
EP  - 446
VL  - 30
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1989__30_3_a2/
LA  - en
ID  - CMUC_1989__30_3_a2
ER  -