TY  - JOUR
AU  - Tanaka, Kazunaga
TI  - Periodic solutions for singular hamiltonian systems and closed geodesics on non-compact riemannian manifolds
JO  - Annales de l'I.H.P. Analyse non linéaire
PY  - 2000
SP  - 1
EP  - 33
VL  - 17
IS  - 1
PB  - Gauthier-Villars
UR  - http://www.numdam.org/item/AIHPC_2000__17_1_1_0/
LA  - en
ID  - AIHPC_2000__17_1_1_0
ER  -