Functional ultrastructure and cytochemistry of vitellogenesis and mature vitellocytes of the digenean Cainocreadium labracis (Dujardin, 1845), parasite of Dicentrarchus labrax (L., 1758) - Świderski, Z.; Kacem, H.; Mackiewicz, J. S.; Miquel, J. (Parasitology Research, 2019)