Positive solutions of periodic boundary value problems for the second-order differential equation with a parameter
Crossref DOI link: https://doi.org/10.1186/s13661-017-0776-y
Published Online: 2017-04-08
Published Print: 2017-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Wang, Ying
Li, Jing
Cai, Zengxia
License valid from 2017-04-08