[1]Kovacs,J.;Rodin,R.L.[JournalofOrganicChemistry,1968,vol.33,#6,p.2418-2420]
[2]Schnabel,E.[JustusLiebigsAnnalenderChemie,1964,vol.673,p.171-175]Shibnev,V.A.etal.[BulletinoftheAcademyofSciencesoftheUSSRDivisionofChemicalScience,1970,p.2409-2413][IzvestiyaAkademiiNaukSSSR,SeriyaKhimicheskaya,1970,#11,p.2566-2570]Losse,G.;Vietmeyer,H.[JournalfurpraktischeChemie(Leipzig1954),1966,vol.32,p.204-210]