Knútur Árnason 1952; Guðmundur Ingi Haraldsson 1951; Gunnar V. Johnsen 1949; Gunnar Þorbergsson 1929-2015; Gylfi Páll Hersir 1951; Kristján Sæmundsson 1936; Sigurður Th. Rögnvaldsson 1964-1999; Snorri Páll Snorrason 1951; Hitaveita Reykjavíkur; Orkustofnun. Jarðhitadeild. (Orkustofnun, 1986)