1. Allen AG, Oppenheimer C, Ferm M, Baxter PJ, Horrocks LA, Galle B, McGonigle AJS, Duffell HJ (2002) Primary sulphate aerosol and associated emissions from Masaya volcano, Nicaragua. J Geophys Res 107:4682–4688
2. Ansmann A, Tesche M, Groβ S, Freudenthaler V, Seifert P, Hiebsch A, Schmidt J, Wandinger U, Mattis I, Müller D, Wiegner M (2010) The 16 April 2010 major volcanic ash plume over central Europe: EARLINET lidar and AERONET photometer observations at Leipzig and Munich Germany. Geophys Res Lett 37:L13810. doi: 10.1029/2010GL043809
3. Baltensperger U (2010) The mass concentration of volcanic ash from Iceland in European airspace. Paul Scherrer Institute, High-Alpine Research Station Jungfraujoch. http://www.psi.ch/media/the-mass-concentration-of-volcanic-ash-from-Iceland-in-European-air-space (Last viewed 13-Jan-2011)
4. Baltensperger U, Bukowiecki N, Zieger P, Juranyi Z, Gysel M, Weingartner E, Neininger B, Hueglin C, Ulrich A, Wichser A, Kaegi R (2010) In situ measurements of physical and chemical properties of the volcanic ash aerosol from the Eyjafjallajökull eruption. Geophy Res Abstr 12:15711
5. Brunner D, Henne S, Hueglin C, Ulrich A, Buchmann B, Baltensperger U, Buckowiecki N, Zieger P, Peter T, Wienhold F, Kaegi R, Neininger B, Pietragalla B (2010) In-situ, Lidar, sonde and aircraft observations of volcanic ash in Switzerland, ESA/EUMETSAT Workshop on Volcanic Ash Monitoring, 26–27 May, ESA/ESRIN, Frascati, http://earth.eo.esa.int/workshops/Volcano/files/13_Brunner_empa_esa_2010.pdf (Last viewed 28-Jan-2011)