TY  - RPRT
TI  - Pick_sw: a program for interactive picking of S-wave data, version 2.00
AU  - Karl J. Ellefsen
PY  - 2002
DO  - 10.3133/ofr02176
UR  - https://pubs.usgs.gov/publication/ofr02176
ID  - ofr02176
ER  -