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- [3] Supply, demand and prices INTERNATIONAL GAS ENGINEERING AND MANAGEMENT, 2007, 47 (06): : 18 - 21
- [4] SULFUR - DEMAND FALLS, PRICES WEAKEN E&MJ-ENGINEERING AND MINING JOURNAL, 1990, 191 (03): : 53 - 55
- [6] OCC demand stays solid from China and prices rise slightly again while demand drops for ONP No. 8 as does pricing Pulp Pap Week, 2006, 13 (1-4):
- [9] METALS ABROAD - PLENTIFUL SUPPLY, DIFFERING TREND OF PRICES, HARDLY ANY RISE IN DEMAND METALL, 1976, 30 (11): : 1091 - 1092