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- [8] METHANOL DERIVATION FROM NORTH-DAKOTA LIGNITE AND USE AS A FUEL INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT, 1979, 18 (04): : 288 - 291
- [9] ECONOMIC CONTRIBUTION OF THE LIGNITE INDUSTRY TO THE NORTH-DAKOTA ECONOMY NORTH DAKOTA FARM RESEARCH, 1983, 41 (02): : 22 - 24
- [10] GEOCHEMICAL VARIATION OF INORGANIC CONSTITUENTS IN A NORTH-DAKOTA LIGNITE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 186 (AUG): : 62 - FUEL