[1]Nasarow;Saretzkaja[IzvestiyaAkademiiNaukSSSR,SeriyaKhimicheskaya,1949,p.186][Chem.Abstr.,1949,p.6623]
[1]Petrow;Karlik[ZhurnalObshcheiKhimii,1941,vol.11,p.1102][Chem.Abstr.,1943,p.4049]
[1]Acklin[BiochemischeZeitschrift,1929,vol.204,p.254]Staerkle[BiochemischeZeitschrift,1924,vol.151,p.401]Derx[VerslagvandeGewoneVergaderingvandeAfdelingNatuurkunde,KoninklijkeNederlandseAkademievanWetenschappen,1924,vol.33,p.550]
[1]Carette[ComptesRendusHebdomadairesdesSeancesdel'AcademiedesSciences,1902,vol.134,p.478]
[1]Beckstroem[ArchivderPharmazie,1904,vol.242,p.99]