Magalhães, L.A. et al. 1991. The miraxonal attraction exercised by Biomphalaria straminea, Lymnaea columella and Physa sp over miracidia of Schistosoma mansoni . Revista de Saúde Pública. 25, 1 (Feb. 1991), 23–27. DOI:https://doi.org/10.1590/S0034-89101991000100005.