TY  - JOUR
AU  - Ursescu,  Corneliu
TI  - Second order tangency conditions and differential inclusions: a counterexample and a remedy
JO  - Electronic journal of differential equations
PY  - 2009
VL  - 2009
UR  - http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a88/
LA  - en
ID  - EJDE_2009__2009__a88
ER  -