Hasselmeier , I., Abt, K. F., Adelung, D. and Siebert , U. (2023) “Stranding patterns of harbour porpoises (Phocoena phocoena) in the German North and Baltic Seas: when does the birth period occur?”, J. Cetacean Res. Manage, 6(3), pp. 259–263. doi: 10.47536/jcrm.v6i3.768.