[1]IndianJournalofHeterocyclicChemistry,2014,vol.24,p.77-80
[2]PolishJournalofChemistry,1979,vol.53,p.1025-1032
[1]PolishJournalofChemistry,1979,vol.53,p.1025-1032
[1]IndianJournalofHeterocyclicChemistry,2014,vol.24,p.77-80
[1]IndianJournalofHeterocyclicChemistry,2014,vol.24,p.77-80