TY  - RPRT
TI  - The National Volcano Early Warning System (NVEWS)
AU  - John Ewert
AU  - Marianne Guffanti
AU  - Peter Cervelli
AU  - James Quick
PY  - 2006
DO  - 10.3133/fs20063142
UR  - https://pubs.usgs.gov/publication/fs20063142
ID  - fs20063142
ER  -