TY  - RPRT
TI  - Robust regional phase association
AU  - C.E. Johnson
AU  - A.G. Lindh
AU  - B.F. Hirshorn
PY  - 1997
DO  - 10.3133/ofr94621
UR  - https://pubs.usgs.gov/publication/ofr94621
ID  - ofr94621
ER  -