TY  - RPRT
TI  - Period doubling and other nonlinear phenomena in volcanic earthquakes and tremor
AU  - B.R. Julian
PY  - 2000
DO  - 10.1016/s0377-0273(00)00165-7
UR  - https://pubs.usgs.gov/publication/70021946
ID  - 70021946
ER  -