[1]JournaloftheAmericanChemicalSociety,1957,vol.79,p.6533,6534,6536
[1]JournaloftheAmericanChemicalSociety,1956,vol.78,p.2608
[1]BulletindesSocietesChimiquesBelges,1927,vol.36,p.191 ChemischesZentralblatt,1927,vol.98,p.2978
[1]BulletindesSocietesChimiquesBelges,1927,vol.36,p.191 ChemischesZentralblatt,1927,vol.98,p.2978
[1]BulletindesSocietesChimiquesBelges,1927,vol.36,p.191 ChemischesZentralblatt,1927,vol.98,p.2978