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Petersen, H. I. .; Andsbjerg, J. .; Bojesen-Koefoed, J. A. .; Nytoft, H. P. .; Rosenberg, P. . Petroleum Potential and Depositional Environments of Middle Jurassic Coals and Non-Marine Deposits, Danish Central Graben, With Special Reference to the Søgne Basin. dgub 1998, 36, 1-80.