C. S. Barbosa, V. S. Barbosa, W. C. Nascimento, O. S. Pieri, and K. C. G. M. Araújo, “Study of the snail intermediate hosts for Schistosoma mansoni on Itamaracá Island in northeast Brazil: spatial displacement of Biomphalaria glabrata by Biomphalaria straminea”, Geospat Health, vol. 8, no. 2, pp. 345–351, May 2014.