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- [21] THE CHEMISTRY OF COAL-LIQUEFACTION ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 185 (MAR): : 2 - FUEL
- [25] THE CHEMISTRY OF COAL-LIQUEFACTION ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 186 (AUG): : 40 - FUEL