Envall, T. (2008). Permeability and its effect on the utilization of geothermal energy.
Chicago-viite (17. p.)Envall, Tapio. Permeability and Its Effect on the Utilization of Geothermal Energy. Jyväskylä, 2008.
MLA-viite (9. p.)Envall, Tapio. Permeability and Its Effect on the Utilization of Geothermal Energy. 2008.
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