Akella, J., Vaidya, S. N., & Kennedy, G. C. (1969). Melting of sodium chloride at pressures to 65 kbar, Phys. Rev., 185, pp.1135-1140.
Fisher, R.V., Heiken, G., & Hulen, Jeffrey B. (1997). Volcanoes: Crucibles of Change. Princeton University Press, p.317
Halbwachs, M., et al. (2004). Degassing the "Killer Lakes" Nyos and Monoun, Cameroon. Eos, 85, pp.281, 285.
Hirano, N., et al. (2006). Volcanism in Response to Plate Flexure. Science, 313, pp.1426-1428.
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Links
[1] https://visibleearth.nasa.gov/view.php?id=63875
[2] http://volcanoes.usgs.gov/
[3] http://www.avo.alaska.edu/
[4] http://hvo.wr.usgs.gov/
[5] http://volcanoes.usgs.gov/yvo/
[6] http://vulcan.wr.usgs.gov/home.html
[7] http://volcanoes.usgs.gov/about/edu/
[8] http://volcanoes.usgs.gov/hvo/so2/havoalert.php
[9] http://pubs.usgs.gov/ds/545
[10] http://www.volcano.si.edu/
[11] http://www.wovodat.org/