Nonconstant periodic solutions created by impulses for singular differential equations
Crossref DOI link: https://doi.org/10.1186/s13661-015-0458-6
Published Online: 2015-10-23
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Daoudi-Merzagui, Naima
Boucherif, Abdelkader
License valid from 2015-10-23