Donal O'Regan, Aleksandra Orpel. Eigenvalue intervals for higher order problems with singular nonlinearities. Applied Mathematics and Computation, 218(4):1233-1239, 2011. [doi]
@article{OReganO11,
title = {Eigenvalue intervals for higher order problems with singular nonlinearities},
author = {Donal O'Regan and Aleksandra Orpel},
year = {2011},
doi = {10.1016/j.amc.2011.06.003},
url = {http://dx.doi.org/10.1016/j.amc.2011.06.003},
researchr = {https://researchr.org/publication/OReganO11},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {218},
number = {4},
pages = {1233-1239},
}