[1]IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1985,vol.24,p.1298-1301
[1]IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1985,vol.24,p.1298-1301
[1]AustralianJournalofChemistry,1983,vol.36,p.2317-2325
[1]Krapivin,G.D.;Usova,E.B.;Zavodnik,V.E.;Kul'nevich,V.G.[ChemistryofHeterocyclicCompounds,1992,vol.28,#8,p.890-894][KhimiyaGeterotsiklicheskikhSoedinenii,1992,#8,p.1063-1067]
[1]IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1985,vol.24,p.1298-1301