Siebert, U., Gulland, F., Harder, T., Jauniaux, T., Seibel, H., Wohlsein, P., & Baumgärtner, W. (2010). Epizootics in harbour seals (<i>Phoca vitulina</i>): clinical aspects. NAMMCO Scientific Publications, 8, 265–274. https://doi.org/10.7557/3.2689