Gomberg, Joan and Belardinelli, M. E. and Cocco, Massimo and Reasenberg, Paul  (2005) Time-dependent earthquake probabilities.  Journal of Geophysical Research, 110 (B5).  pp. 1-12. DOI: https://doi.org/10.1029/2004JB003405 <https://doi.org/10.1029/2004JB003405>