Monitoring microseismicity of the Hengill Geothermal Field in Iceland oleh Francesco Grigoli, John F. Clinton, Tobias Diehl, Philipp Kaestli, Luca Scarabello, Thorbjorg Agustsdottir, Sigridur Kristjansdottir, Rognvaldur Magnusson, Christopher J. Bean, Marco Broccardo, Simone Cesca, Torsten Dahm, Vala Hjorleifsdottir, Banu Mena Cabrera, Claus Milkereit, Nima Nooshiri, Anne Obermann, Roman Racine, Antonio Pio Rinaldi, Vanille Ritz, Pilar Sanchez-Pastor, Stefan Wiemer