1. Ármannsson, H., 1993. Námafjall geothermal system. Geochemical investigations. National Energy Authority Report OS-93053/JHD-29 B, 30 pp (in Icelandic).
2. Ármannsson, H., Hauksson, T., 1980. Krafla. Composition of fumarole gas. National Energy Authority Report OS-80027/JHD16, 51 pp (In Icelandic).
3. Gas changes in the Krafla geothermal system, Iceland;Ármannsson;Chemical Geology,1989
4. Magma gases in well fluids aid the mapping of the flow pattern in a geothermal system;Ármannsson;Geochimica Cosmochimica Acta,1982
5. Exploration and development of the Krafla geothermal area;Ármannsson;Jökull,1987