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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 3, pp. 56–59, March, 1973.
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Zaskal'ko, P.P., Stepanova, E.V. Polymeric thickening additives [V. I. improvers] for lubricating oils — A review. Chem Technol Fuels Oils 9, 236–238 (1973). https://doi.org/10.1007/BF00717163
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DOI: https://doi.org/10.1007/BF00717163