Cita APA (7a ed.)

Behrndt, J., & Philipp, F. Finite rank perturbations in Pontryagin Spaces and a Sturm–Liouville problem with λ-rational boundary conditions.

Cita Chicago Style (17a ed.)

Behrndt, J., y F. Philipp. Finite Rank Perturbations in Pontryagin Spaces and a Sturm–Liouville Problem with λ-rational Boundary Conditions.

Cita MLA (8a ed.)

Behrndt, J., y F. Philipp. Finite Rank Perturbations in Pontryagin Spaces and a Sturm–Liouville Problem with λ-rational Boundary Conditions.