Heinrich Voss. A minmax principle for nonlinear eigenproblems depending continuously on the eigenparameter. Numerical Lin. Alg. with Applic., 16(11-12):899-913, 2009. [doi]
@article{Voss09,
title = {A minmax principle for nonlinear eigenproblems depending continuously on the eigenparameter},
author = {Heinrich Voss},
year = {2009},
doi = {10.1002/nla.670},
url = {http://dx.doi.org/10.1002/nla.670},
researchr = {https://researchr.org/publication/Voss09},
cites = {0},
citedby = {0},
journal = {Numerical Lin. Alg. with Applic.},
volume = {16},
number = {11-12},
pages = {899-913},
}