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Journal Title :  Letters in Organic Chemistry

Volume:  11

Issue:  5

Article Title :  Silica Supported Zr(HSO4)4 Catalyzed Solvent-free Synthesis of [1]Benzopyrano[ 4,3-b][1]benzopyran-6-ones and Xanthenones

Page No :  350   To   355

Total Pages :   6

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