Olsen, Morten Tange, Signe May Andersen, Jonas Teilmann, Rune Dietz, Susi Manuela Clermont Edrén, Anton Linnet, and Tero Härkönen. 2013. “Status of the harbour seal (<i>Phoca vitulina</i>) in Southern Scandinavia”. NAMMCO Scientific Publications 8 (September):77-94. https://doi.org/10.7557/3.2674.