[1]BulletinoftheChemicalSocietyofJapan,1959,vol.32,p.1295,1297
[1]JournalofBiologicalChemistry,1924,vol.59,p.921
[1]CollectionofCzechoslovakChemicalCommunications,1958,vol.23,p.1100,1102,1107
[2]IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1987,vol.26,p.208-211
[1]JournalofBiologicalChemistry,1924,vol.59,p.921
[1]Bioscience,BiotechnologyandBiochemistry,2001,vol.65,p.305-314