TY  - RPRT
TI  - HYPOELLIPSE/version 2.0; a computer program for determining local earthquake hydrocentral parameters, magnitude, and first motion pattern
AU  - John C. Lahr
PY  - 1989
DO  - 10.3133/ofr89116
UR  - https://pubs.usgs.gov/publication/ofr89116
ID  - ofr89116
ER  -