[1]Lutzetal.[JournalofOrganicChemistry,1947,vol.12,p.96,105,617,686]
[1]Profftetal.[JournalfurpraktischeChemie(Leipzig1954),1954,vol.<4>1,p.57,75]
[1]Tschaikowskaja[IzvestiyaVysshikhUchebnykhZavedenii,KhimiyaiKhimicheskayaTekhnologiya,1959,vol.2,p.895][Chem.Abstr.,1960,p.12046]
[1]Kenner;Statham[JournaloftheChemicalSociety,1935,p.299,301][ChemischeBerichte,1936,vol.69,p.16,17]
[1]Profftetal.[JournalfurpraktischeChemie(Leipzig1954),1955,vol.<4>1,p.57,77]