You may also wish to search for items by Rao, Y.S., Rao, Y. and Rao.
Only one matching reference was found.
Mukhopadhyay, M.; Rao, Y.S.N.M., Solvency-selectivity behavior of a mixed triethylene glycol (TEG)-N-methyl pyrolidone (NMP) solvent for aromatics extraction, Indian Chem. Eng., 1991, 33, 4, 80-4. [all data]