Periodic solutions for a class of second order delay differential systems
Crossref DOI link: https://doi.org/10.1186/s13661-016-0542-6
Published Online: 2016-02-05
Published Print: 2016-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Meng, Qiong
Ding, Juntang
Funding for this research was provided by:
National Natural Science Foundation of China (CN) (61473180)
License valid from 2016-02-05