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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 2, pp. 48–52, February, 1980.
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Zakupra, V.A., Timoshenko, S.V. Separation of lube oil detergent additives on silica gel. Chem Technol Fuels Oils 16, 134–139 (1980). https://doi.org/10.1007/BF00730229
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DOI: https://doi.org/10.1007/BF00730229