Non-unitary limits on different textures for low-scale seesaw models Jesús Miguel Celestino-Ramírez, G. Hernández-Tomé, O. G. Miranda and Eduardo Peinado Eur. Phys. J. C, 85 4 (2025) 405 Published online: 10 April 2025 DOI: 10.1140/epjc/s10052-025-14126-9