Morales-Hojas, R., Cheke, Robert A. ORCID: 0000-0002-7437-1934 and Post, R.J. (2006) Molecular systematics of five Onchocerca species (Nematoda: Filarioidea) including the human parasite, O. volvulus, suggest sympatric speciation. Journal of Helminthology, 80 (3). pp. 281-290. ISSN 0022-149X (doi:https://doi.org/10.1079/JOH2006331)