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De Vocht, A. (1989). Ultrastructure of the proboscis in Cystiplanidae, (Plathelminthes, Kalyptorhynchia). Zoomorphology. 109: 1–10.
De Vocht, A. (1989). Ultrastructure of the proboscis in Cystiplanidae, (Plathelminthes, Kalyptorhynchia). Zoomorphology. 109: 1–10.