Bommer, Julian J. and Abrahamson, Norman A. and Strasser, Fleur O. and Pecker, Alain and Bard, Pierre-Yves and Bungum, Hilmar and Cotton, Fabrice and Fah, Donat and Sabetta, Fabio and Scherbaum, Frank and Studer, Jost (2004) The Challenge of Defining Upper Bounds on Earthquake Ground Motions. Seismological Research Letters, 75 (1). pp. 82-95. DOI: https://doi.org/10.1785/gssrl.75.1.82