Tsung-fang Wu. Multiple positive solutions for semilinear elliptic systems with nonlinear boundary condition. Applied Mathematics and Computation, 189(2):1712-1722, 2007. [doi]
@article{Wu07e, title = {Multiple positive solutions for semilinear elliptic systems with nonlinear boundary condition}, author = {Tsung-fang Wu}, year = {2007}, doi = {10.1016/j.amc.2006.12.052}, url = {http://dx.doi.org/10.1016/j.amc.2006.12.052}, researchr = {https://researchr.org/publication/Wu07e}, cites = {0}, citedby = {0}, journal = {Applied Mathematics and Computation}, volume = {189}, number = {2}, pages = {1712-1722}, }