Aguilera, J., F. L. Figueroa, D.-P. Häder, and C. Jiménez. “Photoinhibition and Photosynthetic Pigment Reorganisation Dynamics in light/Darkness Cycles As Photoprotective Mechanisms of Porphyra Umbilicalis Against Damaging Effects of UV Radiation”. Scientia Marina, vol. 72, no. 1, Mar. 2008, pp. 87-97, doi:10.3989/scimar.2008.72n187.