von Numers, M., J. Hänninen, K. Mäkinen, and M. Snickars. “Indications of Garfish Belone Belone Reproducing in Southern Finland”. Memoranda Societatis Pro Fauna Et Flora Fennica, vol. 95, Dec. 2019, pp. 131–133, https://journal.fi/msff/article/view/88620.