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Platonova, T. A. (1984). An Analysis of the Cephalic Structures in Free-living Nematodes of the Family Enoplidae (Enoplida) and the Problems of Evolution of This Group (Analiz Golovykh Struktur Svobodnozhivushchikh Nematod Semeistva Enoplidae (Enoplida) i Voprosy Evoliutsiia etoi Gruppy). Zoologicheskii Zhurnal, 63: 645-655.