@article{hal-01408147,
author = {Fran\c coise , Jean-Pierre and Guillemin, V.},
title = {On the period spectrum of a symplectic mapping},
journal = {HAL},
volume = {1991},
number = {0},
year = {1991},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-01408147}
}
Françoise , Jean-Pierre ; Guillemin, V. On the period spectrum of a symplectic mapping. HAL, Tome 1991 (1991) no. 0, . http://gdmltest.u-ga.fr/item/hal-01408147/