Murat, V., Rivera, A., Pouliot, J., Miranda-Salas, M. y Savard, M.M. 2004. Aquifer vulnerability mapping and GIS: A proposal to monitor uncertainty associated with spatial data processing. Geofísica Internacional. 43, 4 (oct. 2004), 551–565. DOI:https://doi.org/10.22201/igeof.00167169p.2004.43.4.789.