TY  - JOUR
AU  - Haraux, A.
AU  - Yan, Q.
TI  - On a class of second order ODE with a typical degenerate nonlinearity.
JO  - Portugaliae mathematica
PY  - 2001
SP  - 233
EP  - 254
VL  - 58
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_2001__58_2_49223/
LA  - en
ID  - PORMA_2001__58_2_49223
ER  -