Elementary variational approach to positive and negative solutions of a nonlinear algebraic system
Crossref DOI link: https://doi.org/10.1186/s13662-017-1359-z
Published Online: 2017-10-11
Published Print: 2017-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Zhang, Jiao-Ling
Wang, Gen-Qiang
License valid from 2017-10-11
