TY  - RPRT
TI  - The dependence of peak horizontal acceleration on magnitude, distance, and site effects for small-magnitude earthquakes in California and eastern North America
AU  - K.W. Campbell
PY  - 1989
DO  - 10.1785/bssa0790051311
UR  - https://pubs.usgs.gov/publication/70015318
ID  - 70015318
ER  -