M. P. Valim, R. H. F. Teixeira, G. S. Gazeta, and N. M. Serra-Freire, “Two species of captive swans (Aves: Anatidae) as new hosts for Brephosceles discidicus Peterson, 1971 (Acaridida: Pterolichidae)”, Lundiana, vol. 7, no. 2, pp. 141–143, Jun. 2007.