@misc{indiciaef7b786d0d11d, title = {Airborne filter pack measurements of S and Cl in the plume of Redoubt Volcano, Alaska February–May 2009}, author = {Melissa Pfeffer and Michael P. Doukas and Cynthia A. Werner and William C. Evans}, year = {2013}, doi = {10.1016/j.jvolgeores.2012.04.011}, url = {https://pubs.usgs.gov/publication/70193585}, note = {Source identifier: 70193585} }