The spread of Biomphalaria pfeifferi in the Niger River valley, Niger Labbo, R. Garba, A. Louboutin-Croc, J.P. /Ernould, Jean-Christophe /Sellin, Bertrand /Chippaux, Jean-Philippe SCHISTOSOMIASE TRANSMISSION PARASITE HOTE SERPENT IRRIGATION REPARTITION GEOGRAPHIQUE 2003 text https://www.documentation.ird.fr/hor/fdi:010030888 fdi:010030888 Labbo R., Garba A., Louboutin-Croc J.P., Ernould Jean-Christophe, Sellin Bertrand, Chippaux Jean-Philippe. The spread of Biomphalaria pfeifferi in the Niger River valley, Niger. 2003, 97 (2), 209-212 EN NIGER