Wróblewski, Piotr, Ovcharenko, Mykola, Eichenlaub, Jolanta, AND Yuryshynets, Volodymyr. " SEASONALITY OF MICROSPORIDIAN AND GREGARINE PARASITISM IN GAMMARUS PULEX (CRUSTACEA: AMPHIPODA) INHABITING THE TRIBUTARY OF THE SŁUPIA RIVER" Baltic Coastal Zone [Online], Volume 23(17 May 2020)