Haraldur Sigurðsson. Melting the Earth: The History of Ideas on Volcanic Eruptions. [s.l.]: Oxford University Press, 1999-06-24. 272s. Dostupné online. ISBN978-0195106657. (angličtina)
Durham University. The petrology and chemistry of the Setberg volcanic region and of the intermediate and acid rocks of Iceland. https://www.durham.ac.uk/ [online]. 2013-11-13. Dostupné online.
Durham University. The petrology and chemistry of the Setberg volcanic region and of the intermediate and acid rocks of Iceland. https://www.durham.ac.uk/ [online]. 2013-11-13. Dostupné online.
Haraldur Sigurðsson; S. Dhondt; Michael A. Arthur; TJ Bralower; J.C. Zachos; J. E. T. Channell. Glass From The Cretaceous Tertiary Boundary In Haiti [online]. Nature, 1991-03. Dostupné online. (angličtina)
Haraldur Sigurðsson; Steven Carey. Plinian and Co-Igmibrite Tephra Fall from the 1815 Eruption of Tambora Volcano [online]. Bulletin of Volcanology, 1989-06. Dostupné online. (angličtina)