Luis Ignacio Hernandez Segura developed Spin-Flip TDDFT Bibliography Reference Support for the cp2k/cp2k repository, focusing on enhancing citation accuracy and traceability within scientific computing workflows. He introduced a new SF-TDDFT citation into the bibliography module, ensuring updates were propagated throughout related code paths for consistent recognition and display. This work streamlined the citation workflow, reducing manual verification and improving end-user clarity. Utilizing Fortran programming, numerical methods, and Python module integration, Luis demonstrated careful code propagation and robust version control. The depth of his contribution lies in delivering a precise, standards-compliant solution that directly impacts citation reliability for users.