@article{etna_vol51_pp50-62, author = {Mirjana Brdar and Sebastian Franz and Hans-G\"org Roos}, title = {Numerical treatment of singularly perturbed fourth-order two-parameter problems}, journal = {Electron. Trans. Numer. Anal.}, volume = {51}, year = {2019}, pages = {50--62}, doi = {10.1553/etna_vol51s50}, }