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- [4] COAL-LIQUEFACTION ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1980, 180 (AUG): : 34 - CHED
- [8] PRETREATMENT FOR COAL-LIQUEFACTION ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1991, 201 : 3 - FUEL
- [9] MECHANISM OF COAL-LIQUEFACTION ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1990, 199 : 24 - FUEL