TY - RPRT TI - User’s guide and reference to Ash3d—A three-dimensional model for Eulerian atmospheric tephra transport and deposition AU - Larry G. Mastin AU - Michael J. Randall AU - Hans F. Schwaiger AU - Roger P. Denlinger PY - 2013 DO - 10.3133/ofr20131122 UR - https://pubs.usgs.gov/publication/ofr20131122 ID - ofr20131122 ER -