@article{GDZPPN002098903,
title = {The Number and Linking of Periodic Solutions of Periodic Systems.},
journal = {Inventiones mathematicae},
volume = {69},
year = {1982},
pages = {319-340},
zbl = {0538.34025},
url = {http://dml.mathdoc.fr/item/GDZPPN002098903}
}
Matsuoka, Takashi. The Number and Linking of Periodic Solutions of Periodic Systems.. Inventiones mathematicae, Tome 69 (1982) pp. 319-340. http://gdmltest.u-ga.fr/item/GDZPPN002098903/