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Tu, B. M. T.; Tuan, M. T.; Hieu, L. V. A Study on Method to Identify Types of Crude Oils Based on Chromatographic Fingerprint Analysis of 24 Pairs of Peaks of Hydrocarbons from NC8-nC22 and Its Application Todistinguishing New Oil Structures OfVietsovpetro. PVJ 2013, 2, 29-33.