Schmid, A. and Grasso, Jean-Robert  (2012) Omori law for eruption foreshocks and aftershocks.  Journal of Geophysical Research, 117 (B7).  n/a-n/a. DOI: https://doi.org/10.1029/2011JB008975 <https://doi.org/10.1029/2011JB008975>