The phylogeny of the Lepocreadioidea (Platyhelminthes: Digenea) inferred from nuclear and mitochondrial genes: implications for their systematics and evolution - Bray, R. A.; Waeschenbach, A.; Cribb, T. H.; Weedall, G. D.; Dyal, P.; Littlewood, D. T. J. (Acta Parasitologica, 2009)