Barbosa, C. S., 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”. Geospatial Health, vol. 8, no. 2, May 2014, pp. 345-51, doi:10.4081/gh.2014.24.