Alexander G. Ramm. A nonlinear singular perturbation problem. Asymptotic Analysis, 47(1-2):49-54, 2006. [doi]
@article{Ramm06-0, title = {A nonlinear singular perturbation problem}, author = {Alexander G. Ramm}, year = {2006}, url = {http://iospress.metapress.com/content/8cpq185x5jn6tqjb/}, researchr = {https://researchr.org/publication/Ramm06-0}, cites = {0}, citedby = {0}, journal = {Asymptotic Analysis}, volume = {47}, number = {1-2}, pages = {49-54}, }