TY  - JOUR
AU  - H. Hofer
AU  - K. Wysocki
TI  - First order elliptic systems and the existence of homoclinic orbits in Hamiltonian systems.
JO  - Mathematische Annalen
PY  - 1990
SP  - 483
EP  - 504
VL  - 288
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1990__288_1_164745/
ID  - MAN_1990__288_1_164745
ER  -