[1]JournaloftheChemicalSociety,1935,p.1425
[1]Pudleiner,Heinz;Laatsch,Hartmut[LiebigsAnnalenderChemie,1990,#5,p.423-432]
[2]Speicher,Andreas[JournalfurPraktischeChemie(Weinheim),2000,vol.342,#2,p.162-168]
[1]JournaloftheChemicalSociety,1935,p.1425
[1]JournaloftheChemicalSociety,1935,p.1425