[1]
K. Gunasundari, M. Pramesh, S. Jayanthi, M. Vetriselvan, and S. Helen Perci, “Synthesis of Dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraone using p-Toluenesulfonic Acid as Catalyst”, ajc, vol. 34, no. 5, pp. 1134–1138, Apr. 2022.