[1]Howard,R.A.;Sherwood,E.;Erck,A.;Kimball,A.P.;Bear,J.L.[JournalofMedicinalChemistry,1977,vol.20,p.943-946]
[2][GmelinHandbuchderAnorganischenChemie,GmelinHandbook:Rh:SVol.B2,1.1.2.5,page48-49]