[1]JournaloftheChemicalSociety, JournaloftheChemicalSociety,1965,p.5040-5045
[2]GmelinHandbuchderAnorganischenChemie,GmelinHandbook:F:PerFHalOrg.5,4,page115-148
[3]Patent:BE660873,1965, Chem.Abstr.,1966,vol.65
[1]AngewandteChemie-InternationalEdition,2020,vol.59,p.4009-4016 Angew.Chem.,2020,vol.132,p.4038-4045,8