@article{garciasaldana:hal-02879499, TITLE = {{A new approach for the study of limit cycles}}, AUTHOR = {Garc{\'i}a-Salda{\~n}a, Johanna D. and Gasull, A. and Giacomini, Hector}, URL = {https://cnrs.hal.science/hal-02879499}, NOTE = {20 pages, 1 figure}, JOURNAL = {{Journal of Differential Equations}}, PUBLISHER = {{Elsevier}}, VOLUME = {269}, YEAR = {2020}, MONTH = May, HAL_ID = {hal-02879499}, HAL_VERSION = {v1}, }