Sverrir Þórhallsson 1944; Karl Ragnars 1941; Stefán Arnórsson 1942; Hrefna Kristmannsdóttir 1944; Orkustofnun. Jarðhitadeild.; United Nations Symposium on the Development and Use of Geothermal Resources (2 : 1975 :San Francisco, Calif) (Orkustofnun, 1975)