[1]JournaloftheAmericanChemicalSociety,1950,vol.72,p.4189,4190
[1]JournalofOrganicChemistry,1951,vol.16,p.320,322
[1]JournaloftheAmericanChemicalSociety,1950,vol.72,p.4189,4190
[1]JournaloftheAmericanChemicalSociety,1950,vol.72,p.4189,4190
[1]BulletinoftheChemicalSocietyofJapan,1971,vol.44,p.2484-2490