[1],1958,p.149,151,152 Chem.Abstr.,1959,p.3229
[1],1958,p.149,152 Chem.Abstr.,1959,p.3229
[1]JournalofHeterocyclicChemistry,1981,vol.18,p.825-828
[1]JournalofHeterocyclicChemistry,1981,vol.18,p.825-828
[1]JournalofHeterocyclicChemistry,1981,vol.18,p.825-828