[1]JournaloftheAmericanChemicalSociety,1958,vol.80,p.5289,5293
[1]JournaloftheAmericanChemicalSociety,1958,vol.80,p.5289,5293
[1]JournaloftheAmericanChemicalSociety,1969,vol.91,p.1339-1346
[1]JournaloftheAmericanChemicalSociety,1969,vol.91,p.1339-1346
[1]JournalofOrganicChemistry,1971,vol.36,p.193-196