References

Faber, E., C. Morán, J. Poggenburg, G. Garzón, and M. Teschner, Continuous gas monitoring at Galeras Volcano, Colombia: First evidence, J. Volc. Geotherm. Res., 25, 13-23, 2003.

Gómez, D., M. Hellweg, B. Buttkus, F. Böker, M.L. Calvache, G. Cortés, E. Faber, F. Gil Cruz, S. Greinwald, C. Laverde, L. Narváez, A. Ortega, H. Rademacher, G. Sandmann, D. Seidl, B. Silva and R. Torres, A volcano reawakens: Multiparameter observations of activity transition at Galeras Volcano (Colombia), EOS Trans. AGU, 85(47), Fall Meet. Supp., Abstract V11B-1423, 2004.

Hellweg, M., The Polarization of Volcanic Seismic Signals: Medium or Source?, J. Volc. Geotherm. Res., 128, 159-176, 2003.

Narváez, M.L., R.A. Torres, D.M. Gómez, G.P.J. Cortés, H.V. Cepeda, and J. Stix, Tornillo-type seismic signals at Galeras volcano, Colombia, 1992-1993. J. Volcanol. Geotherm. Res., 77, 159-171, 1997.

Seidl, D., M. Hellweg, M. Calvache, D. Gómez, A. Ortega, R. Torres, F. Böker, B. Buttkus, E. Faber and S. Greinwald, The multiparameter-station at Galeras Volcano (Colombia): Concept and realization, J. Volc. Geotherm. Res., 125, 1-12, 2003

Seidl, D. and M. Hellweg, Parametrization of multichromatic tornillo signals observed at Galeras Volcano (Colombia), J. Volc. Geotherm. Res., 125, 171-189, 2003

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