Raulin, J.P., Correia de Matos, D.P., Hadano, R., Saraiva, C.V., Correia, E. y Kaufmann, P. 2009. The south America VLF NETwork (SAVNET): Development, installation status, first results. Geofísica Internacional. 48, 3 (jul. 2009), 253–261. DOI:https://doi.org/10.22201/igeof.00167169p.2009.48.3.24.