relation: https://episodesplatform.eu/eprints/1316/ title: Comment on "Sigma: Issues, Insights, and Challenges" by F. O. Strasser, N. A. Abrahamson, and J. J. Bommer creator: Wang, Zhenming subject: Path and site effects publisher: Seismological Society of America date: 2009-05 type: Article type: PeerReviewed identifier: Wang, Zhenming (2009) Comment on "Sigma: Issues, Insights, and Challenges" by F. O. Strasser, N. A. Abrahamson, and J. J. Bommer. Seismological Research Letters, 80 (3). pp. 491-493. DOI: https://doi.org/10.1785/gssrl.80.3.491 relation: http://dx.doi.org/10.1785/gssrl.80.3.491 relation: doi:10.1785/gssrl.80.3.491