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- [4] DISTRICT HEATING-SYSTEMS - WORLDWIDE EXPERIENCE TRANSACTIONS OF THE AMERICAN NUCLEAR SOCIETY, 1983, 45 : 4 - 6
- [8] ECONOMIC OPERATION OF DISTRICT HEATING-SYSTEMS ENERGIA ES ATOMTECHNIKA, 1979, 32 (04): : 150 - 157
- [10] WATER CONDITIONING FOR DISTRICT HEATING-SYSTEMS BRENNSTOFF-WARME-KRAFT, 1985, 37 (05): : 210 - 212