@misc{indiciae9f332809ccf3, title = {Alternative source models of very low frequency events}, author = {Joan S. Gomberg and D.C. Agnew and S.Y. Schwartz}, year = {2016}, doi = {10.1002/2016jb013001}, url = {https://pubs.usgs.gov/publication/70180048}, note = {Source identifier: 70180048} }