Pilecka-Rapacz, Małgorzata, et al. “Parasitological Survey of Smelt, Osmerus Eperlanus (Actinopterygii: Osmeridae), from Five Estuary Sites Along the Southern Coast of the Baltic Sea”. Oceanological and Hydrobiological Studies, vol. 46, no. 3, Sept. 2017, pp. 314-2, https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/8756.