Steensen, Torge, Peter Webley, and Jon Dehn. “Improvements on Near Real Time Detection of Volcanic Ash Emissions for Emergency Monitoring With Limited Satellite Bands”. Annals of Geophysics 57 (March 3, 2015). Accessed April 14, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/6598.