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Khatavi, S Y and Kantharaju, K and Yamanappa, H and Raghothama, S (2019) Rice husk SiO2 (NPs) supported-BO3H3: a highly active, solvent-free and recyclable catalyst to dihydropyrimidin-2(1H)ones-(thiones) and coumarin-3-carboxylic acid synthesis. In: CURRENT SCIENCE, 117 (11). pp. 1828-1841.