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APA Citation
D'Ancona, P., Fanelli, L., Krejčiřík, D., & Schiavone, N. (2022). localization of eigenvalues for non-self-adjoint Dirac and Klein–Gordon operators. Nonlinear analysis, 214, . http://access.bl.uk/ark:/81055/vdc_100145482049.0x00003c