[1]JournalofHeterocyclicChemistry,1980,vol.17,p.1757-1760
[1]JournalofHeterocyclicChemistry,1980,vol.17,p.1757-1760
[1]JournalofHeterocyclicChemistry,1980,vol.17,p.1757-1760
[1]JournalofHeterocyclicChemistry,1980,vol.17,p.1757-1760
[1]JournalofHeterocyclicChemistry,1980,vol.17,p.1757-1760