Liang Bai, Guang Zhang. Nontrivial solutions for a nonlinear discrete elliptic equation with periodic boundary conditions. Applied Mathematics and Computation, 210(2):321-333, 2009. [doi]
@article{BaiZ09,
title = {Nontrivial solutions for a nonlinear discrete elliptic equation with periodic boundary conditions},
author = {Liang Bai and Guang Zhang},
year = {2009},
doi = {10.1016/j.amc.2008.12.024},
url = {http://dx.doi.org/10.1016/j.amc.2008.12.024},
researchr = {https://researchr.org/publication/BaiZ09},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {210},
number = {2},
pages = {321-333},
}