[1]Niederpruem,H.etal.[JustusLiebigsAnnalenderChemie,1973,p.11-19]
[2]Niederpruem,H.;Voss,P.;Wechsberg,M.[LiebigsAnnalenderChemie][LiebigsAnnalenderChemie,1973,p.11-20][GmelinHandbuchderAnorganischenChemie,GmelinHandbook:F:PerFHalOrg.2,1.3.3,page120-137]
[1]Maringgele,Walter;Meller,Anton[JournalofOrganometallicChemistry,1980,vol.188,#3,p.401-425]
[1]Maringgele,Walter;Meller,Anton[JournalofOrganometallicChemistry,1980,vol.188,#3,p.401-425]