Estimating the abundance of the critically endangered Baltic Proper harbour porpoise (Phocoena phocoena) population using passive acoustic monitoring oleh Mats Amundin, Julia Carlström, Len Thomas, Ida Carlén, Jens Koblitz, Jonas Teilmann, Jakob Tougaard, Nick Tregenza, Daniel Wennerberg, Olli Loisa, Katharina Brundiers, Monika Kosecka, Line A. Kyhn, Cinthia Tiberi Ljungqvist, Signe Sveegaard, M. Louise Burt, Iwona Pawliczka, Ivar Jussi, Radomil Koza, Bartlomiej Arciszewski, Anders Galatius, Martin Jabbusch, Jussi Laaksonlaita, Sami Lyytinen, Jussi Niemi, Aleksej Šaškov, Jamie MacAuley, Andrew J. Wright, Anja Gallus, Penina Blankett, Michael Dähne, Alejandro Acevedo‐Gutiérrez, Harald Benke