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Allen, R.M., 2008. At First Jolt: Will we have warnings for the next big earthquake? Geotimes/EARTH, 53 (10), p52-59. (download pdf)
Cua, G., 2008. Earthquake early warning systems: an investment that pays off in seconds. Natural Hazards Observer, volume 32, number 5, pp1-3. Natural Hazards Research Center. Univ. of Colorado, Boulder. Invited comment. (download pdf)
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