scholarly article by Fiona A. Darbyshire et al published July 2004 in Geophysical Journal International

scholarly article by Trine Dahl-Jensen et al published January 2003 in Earth and Planetary Science Letters

scholarly article by Winfried Hanka

scientific article published in February 2004

scholarly article by John F. Clinton et al published 14 January 2014 in Eos

scholarly article by Nur Ucisik et al published December 2008 in Tectonophysics