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[1]Muth,ChesterW.;Yang,KaipeenE.[JournalofHeterocyclicChemistry,1996,vol.33,#2,p.249-254]
[1]Muth,ChesterW.;Yang,KaipeenE.[JournalofHeterocyclicChemistry,1996,vol.33,#2,p.249-254]