TY  - RPRT
TI  - Volcanic ash hazards and aviation risk: Chapter 4
AU  - Marianne C. Guffanti
AU  - Andrew C. Tupper
PY  - 2015
DO  - 10.1016/b978-0-12-396453-3.00004-6
UR  - https://pubs.usgs.gov/publication/70184999
ID  - 70184999
ER  -