Moravec, F., Kohn, A., Fernandes, B. M. M. Structure of the cephalic end of two little-known oxyuroid genera, Travnema Pereira, 1938 and Cosmoxynemoides Travassos, 1949, parasites of fishes, as revealed by SEM. Journal of Helminthology. 1994, 68(-), 319-322. ISSN 0022-149X. E-ISSN 1475-2697.