TY - RPRT TI - Intermediate-term, pre-earthquake phenomena in California, 1975-1986, and preliminary forecast of seismicity for the next decade AU - R. L. Wesson AU - C. Nicholson PY - 1988 DO - 10.1007/bf00879005 UR - https://pubs.usgs.gov/publication/70013719 ID - 70013719 ER -