Axel Björnsson 1942; Gunnar V. Johnsen 1949; Sven Þ. Sigurðsson 1945; Gunnar Þorbergsson 1929-2015; Eysteinn Tryggvason 1924; Orkustofnun. Jarðhitadeild.(Orkustofnun, 1978)
Gunnar V. Johnsen 1949; Jón Steinar Guðmundsson 1947-2018; Gísli Júlíusson 1927-2005; Þorsteinn Einarsson 1946; Ólafur Bjarnason 1946; Gestur Gunnarsson 1942-2014; Jón Helgason; Orkustofnun. Jarðhitadeild(Orkustofnun, 1981)