Benoit, J.P., and S.R. McNutt, New constraint on source processes of volcanic tremor at Arenal volcano, Costa Rica, using broadband seismic data, Geophys. Res. Lett., 24, 449-452, 1997. 

Chouet, B., P. Dawson, T. Ohminato, M. Martini, G. Saccorotti, F. Giudicepietro, G. De Luca, G. Milana, and R. Scarpa, Source mechanisms of explosions at Stromboli Volcano, Italy, determined from moment tensor inversions of very long period data, J. Geophys. Res., 108,  doi:10.1029/2002JB001919, 2003. 

Chouet, B., Long period volcano seismicity: its source and use in eruption forecasting, Nature, 380, 309-316, 1996. 

Chouet, B.A., R.A. Page, C.D. Stephens, J.C. Lahr, and J.A. Power, Precursory swarms of long-period events at Redoubt Volcano (1989-1990), Alaska: Their origin and use as forecasting tool, J. Volcanol. Geotherm. Res., 62, 95-135, 1994. 

Chouet, B.A., Resonance of a fluid-driven crack: Radiation properties and implications for the source of long-period events and harmonic tremor, J. Geophys. Res., 93, 4373-4400, 1988. 

Ekstrom, G., anomalous earthquakes on volcano ring-fault structures, Earth Plan. Sci. Lett., 128, 707-712, 1994. 

Goto, A., A new model for volcanic earthquake at Unzen Volcano: melt rupture model, Geophys. Res. Lett., 26, 2541-2544, 1999. 

Kumagai, H., B.A. Chouet, and P.B. Dawson, source processes of a long-period event at Kilauea volcano, Hawaii, Geophys. J. Int., 161, 243-254, 2005. 

Kumagai, H., B. A. Chouet, and M. Nakano, waveform inversion of oscillatory signatures in long-period events beneath volcanoes, J. Geophys. Res., 107, doi: 10.1029/2001JB001704, 2002. 

Kumagai, H., and B.A. Chouet, The complex frequencies of long-period seismic events as probes of fluid  composition beneath volcanoes, Geophys. J. Int., 138, F7-F12, 1999. 

Nakamichi, H., H. Hamaguchi, S. Tanaka, S. Ueki, T. Nishimura, and A. Hasewaga, Source mechanisms of deep and intermediate depth low-frequency earthquakes beneath Iwate volcano, northeastern Japan, Geophys. J. Int., 154, 811-828, 2003.

Neuberg, J., H. Tuffen, L. Collier, D. Green, T. Powell, and D. Dingwell, The trigger mechanism of low-frequency earthquakes on Montserrat, J. Volcanol. Geotherm. Res., 153, 37-50, 2006. 

Neuberg, J., C. O’Gorman, A model of the seismic wavefield in gas-charged magma: Application to the Soufriere Hills Volcano, Montserrat, In: Druitt, T.H., Kokelaar, B.P. (Eds), The eruption of the Soufriere Hills Volcano, Montserrat, from 1995-1999, Memoirs, Geological society, London, pp 603-609, 2002. 

Neuberg, J., R. Luckett, B. Baptie, and K. Olsen, Models of tremor and low-frequency earthquake swarms on Montserrat, J. Volcanol. Geotherm. Res., 101, 83-104, 2000. 

Ohminato, T., B.A. Chouet, P. Dawson, and S. Kedar, Waveform inversion of very long-period impulsive signals associated with magmatic injection beneath Kilauea Volcano, Hawaii, J. Geophys. Res., 103, 23,839- 23,862, 1998. 

Shimizu, S. Ueki, and J. Koyama, a tensile-shear crack model for the mechanism of volcanic earthquakes, Tectonophysics, 144, 287-300, 1987. 

Tuffen, H., and D.B. Dingwell, Fault textures in volcanic conduits: evidence for seismic trigger mechanisms during silicic eruptions, Bull. Volcanol, doi:10.1007/s00445-004-0383-5, 2004. 

Tuffen, H., D.B. Dingwell, and H. Pinkerton, Repeated fracture and healing of silicic magma generates flow banding and earthquakes?, Geology, 31, 1089-1092, 2003. 

Uhira, K., H. Yamasato, and M. Takeo, Source mechanism of seismic waves excited by pyroclastic flows observed  at Unzen volcano, Japan, J. Geophys. Res., 99, 17,757-17,773, 1994.