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Johnson, S. 1965. Observations on the systematic position of the genus <i>Gaigeria</i> Railliet & Henry, 1910 (subfamily Necatorinae Lane, 1907: family Ancylostomidae Lane, 1907: Nematoda). Revista de Biología Tropical. 13, 2 (dic. 1965), 213–217. DOI:https://doi.org/10.15517/rev.biol.trop.1965.28636.