Hoechner, A., Ge, M., Babeyko, A., Sobolev, S. V. (2013): Instant tsunami early warning based on real time GPS – Tohoku 2011 case study. - Natural Hazards and Earth System Sciences (NHESS), 13, 5, 1285-1292.https://doi.org/10.5194/nhess-13-1285-2013