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1. STUDY OF OIL FROM THE ULKENTOBE SOUTH-WEST AND USHMOLA FIELDS IN THE SOUTH-EASTERN PART OF THE CASPIAN BASIN BASED ON BIOMARKER RESEARCH DATA
2. GEOCHEMICAL CHARACTERISTICS OF THE OIL OF THE EASTERN SIDE OF THE CASPIAN BASIN ACCORDING TO THE STUDY OF CARBON ISOTOPES AND BIOMARKERS
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