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- [22] Worldwide pulp stocks jump to 3.983 million tonnes; U.S. prices could tumble amid drops in China, Europe Pulp and Paper Week, 2004, 26 (37): : 3 - 4
- [23] Biofuels groups protest against OPEC . July fall in crude oil drags down US ethanol and Asian biodiesel . EU ethanol price increases in August . Canada sets 5% biofuel in gasoline by 2010 BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR, 2008, 2 (05): : 382 - 382