Rao, N. M.; Viveka, T. L.; Raju, K. M.; Chary, M. T. Synthesis, Characterization and Biological Activity of Novel 1,3,4-Oxadiazole Derivatives of 1,3-Dihydro-1-Oxoisobenzofuran-5-Carboxylic Acid. ajc 2019, 32, 95-100.