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Peterson H I, Rosenberg P. Reflectance retardat ion( supp ress ion ) and source properties related to hydrogenenriched vitrinite in middle Jurassic coals Danish North Sea[ J] . J . Petrol. Geol . , 1998, 21( 3) : 247- 263.
Hutton A C ,Cook A C. Influence of alginite on the ref ectance of vitrinite from Joadja, NSW, and some other coals and oil shales containing alginite[ J] . Fuel , 1980, 59( 10) : 711- 714.
Peterson H I, Vosgeran H . Composition and organic maturity of middle Jurassic coal, North-East Greenl and: Evidence for liptinite-induced suppression of hum inite reflectance[ J ] . I nt.J . Coal G eol . , 1999, 41: 257- 274.
