"Hildebrand, H. F. & Vinckier, D. 1975. Nouvelles observations sur la Gr\u00E9garine Didymophyes gigantea Stein. The Journal of Protozoology, 22(2): 200-213." . "Hildebrand & Vinckier (1975)" . . . . "Hildebrand & Vinckier (1975)" . "1975"^^ . "1975"^^ .