Periodic solutions for LiƩnard type equation with time-variable coefficient
Crossref DOI link: https://doi.org/10.1186/s13662-015-0465-z
Published Online: 2015-04-23
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Gao, Fabao
Lu, Shiping
Yao, Minghui
License valid from 2015-04-23