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- [5] RAPID CHELOMETRIC DETERMINATION OF PHOSPHORUS IN COAL + COKE INDIAN JOURNAL OF TECHNOLOGY, 1964, 2 (02): : 62 - &
- [6] Solvent extraction of lubricating oils INDUSTRIAL AND ENGINEERING CHEMISTRY, 1931, 23 : 753 - 761
- [8] Lubricating oils - Solvent extraction in a reflux extraction unit INDUSTRIAL AND ENGINEERING CHEMISTRY, 1936, 28 : 1035 - 1037
- [10] SIMULTANEOUS DETERMINATION OF METALS IN LUBRICATING OILS ERDOL & KOHLE ERDGAS PETROCHEMIE, 1978, 31 (04): : 200 - 204