1. Solvent refining of medium viscosity distillate and changes in group chemical composition;Singh;J. Appl. Chem. Biotechnol.,1978
2. Lubricant Base Oil and Wax Processing;Sequeira,1994
3. Petroleum Refining Engineering;Nelson,1978
4. Encyclopedia of Chemical Processing and Design;Mcketta,1989
5. Solvent extraction of aromatics from middle distillates;Rahman;Chem. Eng. Sci.,1984