[1]Kuhn;Klesse[ChemischeBerichte,1958,vol.91,p.1989]
[2]Sowden;Fischer[JournaloftheAmericanChemicalSociety,1947,vol.69,p.1965]
[1]Fischer,E.[ChemischeBerichte,1890,vol.23,p.376]
[1]Fischer,E.[ChemischeBerichte,1890,vol.23,p.376]
[2]Varghaetal.[ActaChimicaAcademiaeScientiarumHungaricae,1959,vol.19,p.307,311][Chem.Abstr.,1960,p.3212]Kuhn;Klesse[ChemischeBerichte,1958,vol.91,p.1989]
[1]Gardneretal.[JournaloftheAmericanChemicalSociety,1952,vol.74,p.2106]
[1]Iwadare[BulletinoftheChemicalSocietyofJapan,1942,vol.17,p.372,376]