Scientific American, a Division of Nature America, Inc | Holm, Alison May 2010 , , Geothermal Energy Association, p |
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6 628 10 6 421 | GEA May 2010 PDF , , , pp |
1 5 250 250 204 | "SEASONAL HEAT STORAGES IN DISTRICT HEATING SYSTEMS" PDF |
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Ehrlich, Robert, 2013, Renewable Energy: A First Course, CRC Press, Chap | 7 1904 27 18 992 1197 3 |
, which has an interseasonal pit storage, is being expanded.