[1]Auwers[ChemischeBerichte,1902,vol.35,p.456]
[2]Zincke;Wiederhold[JustusLiebigsAnnalenderChemie,1902,vol.320,p.196]Raiford;Woolfolk[JournaloftheAmericanChemicalSociety,1924,vol.46,p.2253Anm.15]
[3]Brittain,JudithM.;Mare,PeterB.D.dela;Newman,PaulA.[JournaloftheChemicalSociety.PerkintransactionsII,1981,p.32-41]
[1]Kohn;Wiesen[MonatsheftefurChemie,1924,vol.45,p.255]
[2]Brittain,JudithM.;Mare,PeterB.D.dela;Newman,PaulA.[JournaloftheChemicalSociety.PerkintransactionsII,1981,p.32-41]
[1]Tetrahedron,1987,vol.43,p.835-844
[1]JournaloftheChemicalSociety,1943,p.525