@article{GGS2019,
author = {Gasser, Rebekka and Gedicke, Joscha and Sauter, Stefan},
title = {Benchmark computation of eigenvalues with large defect for non-self-adjoint elliptic differential operators},
journal = {SIAM J. Sci. Comput.},
volume = {41},
number = {6},
pages = {A3938--A3953},
year = {2019},
doi = {10.1137/19M1243233},
}