1. Cavalleri, B. and E. Parenti (1984) In: M. Howe-Grant (ed)Encyclopaedia of Chemical Technology, 4th ed. Vol. 2, John-Wiley, NY.
2. United States Pharmacopoeia/National Formulary. (1985) Volume 21.
3. Chapman and Hall Chemical Database, USA (1994)Dictionary of Natural products. Volume 5, R-Z.
4. McComic, M. H. and J. M. McGuire (1962) Vancomycin and method for its preparation. U.S. Patent 3, 067,099.
5. Chapman and Hall chemical Database. (1990)Dictionary of drugs USA.